Abstract

Integrated photonics has enabled much progress toward quantum technologies. Many applications, e.g., quantum communication, sensing, and distributed cloud quantum computing, require coherent photonic interconnection between separate on-chip subsystems. Large-scale quantum computing architectures and systems may ultimately require quantum interconnects to enable scaling beyond the limits of a single wafer, and toward multi-chip systems. However, coherently connecting separate chips remains a challenge, due to the fragility of entangled quantum states. The distribution and manipulation of entanglement between multiple integrated devices is one of the strictest requirements of these systems. Here, we report, to the best of our knowledge, the first quantum photonic interconnect, demonstrating high-fidelity entanglement distribution and manipulation between two separate photonic chips, implemented using state-of-the-art silicon photonics. Path-entangled states are generated on one chip, and distributed to another chip by interconverting between path and polarization degrees of freedom, via a two-dimensional grating coupler on each chip. This path-to-polarization conversion allows entangled quantum states to be coherently distributed. We use integrated state analyzers to confirm a Bell-type violation of S=2.638±0.039 between the two chips. With further improvements in loss, this quantum photonic interconnect will provide new levels of flexibility in quantum systems and architectures.

© 2016 Optical Society of America

1. INTRODUCTION

Further progress toward quantum communication [1,2], sensing [3], and computing [4,5] will greatly benefit from a “quantum photonic interconnect” (henceforth QPI): an inter-/intra-chip link—e.g., in optical fiber or free space—capable of coherently distributing quantum information and entanglement between on-chip subsystems within a single complete quantum system. The significance of quantum interconnectivity was first highlighted by Kimble [1]. Here we study a chip-based interconnect solution, which will be essential in many future applications and provide substantial architectural flexibility. Secure quantum key distribution and quantum communications [68], and distributed and even cloud quantum computing [911], for example, will require interconnected on-chip subsystems in practice. Precise quantum sensing will gain more flexibility and versatility from on-chip generation and measurement of entanglement, with the interaction with the sample occurring remotely, in a different medium or location (e.g., chip, fiber, and free space [1214]). Quantum computing will greatly benefit from this QPI through architectural simplifications [1517]; easier integration of materials, and platforms optimized for the performance of source [18,19], circuit [2028], detector [29,30], and other on-chip devices [31,32]; and the inclusion of off-chip devices, such as optical delays and memories. Ultimately, large-scale integrated quantum systems and devices may even exceed the area of a single wafer or require interconnects for architectural reasons.

A QPI must coherently and robustly transmit a qubit state α|0+β|1 between subsystems [1], in which the relative phase information must be maintained, as in classical coherent optical communication protocols [33]. The QPI must be capable of coherently interconverting between the preferred encodings in the platforms and media through which it connects [1,34]. Perhaps the most demanding requirement for a quantum interconnect is the preservation of high-fidelity qubit entanglement throughout manipulation, conversion, and transmission processes within the full chip-based system. Path encoding [2025] in two waveguides is the most common and natural choice for the encoding of qubits on-chip. However, encoding qubits in two separate free-space or fiber links requires subwavepacket path-length matching, and fast active phase stabilization. Polarization [610], spatial-mode [35,36], or time-bin [37] encoding is typical for off-chip qubit transmission and distribution. For example, the state of polarization is robust in free space, and in optical fiber (birefringence-induced fluctuation can be actively corrected on slow time scales [38]). Already there have been demonstrations of many important features of these quantum interconnect components, e.g., on-chip entanglement generation and manipulation [2026,39,40], photon detection [29,30], interfacing of different degrees of freedom [4143], and multi-chip links [31,32]. However, to date there has been no demonstration of a full QPI system capable of distributing qubit entanglement across two or more integrated quantum photonic devices.

Here, we demonstrate a high-fidelity QPI. Telecom-band entangled photons are generated, manipulated, and distributed between two integrated silicon photonic chips linked by a single-mode optical fiber. These devices and chips were fabricated using state-of-the-art silicon photonics to enable and monolithically integrate all key capabilities required to demonstrate the quantum interconnect. Maximally path-entangled qubit states are generated and manipulated on-chip. These states are distributed across two silicon chips, by transmitting one qubit from one chip to the other via a fiber link. To preserve coherence across two chips, we used two-dimensional (2D) grating coupler devices [40,41] to interconvert between path (on-chip) and polarization (in-fiber) degrees of freedom. We demonstrate this process with high fidelity. Each qubit is analyzed in its respective chip using thermal phase shifters to form arbitrary integrated state analyzers. We implement a rigorous test of entanglement—confirming a strong Bell-type inequality violation of 16.4σ and 15.3σ. Together with further improvements in loss, this approach will facilitate new quantum technologies and applications that rely on, or benefit from, QPIs.

2. EXPERIMENT

A. Experimental Setup

Our chip-to-chip QPI system is shown schematically in Figs. 1(a) and 1(b). This system generates path-entangled states on chip-A and coherently distributes one entangled qubit to chip-B, via an optical fiber link.

 figure: Fig. 1.

Fig. 1. Quantum photonic interconnect and entanglement distribution between two integrated silicon photonic chips. (a) Chip-A comprises three stages, path-entangled state generation, arbitrary projective measurement A(θAZ,θAY), and path-polarization interconversion (PPC). (b) Chip-B includes projective measurement B(θBZ,θBY) and PPC stages. On chip-A, signal–idler photon pairs are created in the spiraled waveguide single-photon source. Bell states |Φ± are then produced when θSS is controlled to be π/2 or π. Idler qubits initially encoded in the path are coherently coupled to polarization encoding and transmitted through a 10 m single-mode optical fiber (SMF), and reversely converted back to path encoding on chip-B. The signal qubit is analyzed using A(θAZ,θAY) on chip-A, and the idler qubit is analyzed using B(θBZ,θBY) on chip-B. The 2D grating coupler, behaving as the path-polarization converter (PPC), is used to coherently interconvert photonic qubits between path encoding on chip and polarization encoding in fiber. (c)–(e) Optical microscopy images of (c) photon-pair source, (d) arbitrary state analyzer (inset shows the MMI splitter), and (e) 2D grating coupler PPC structure.

Download Full Size | PPT Slide | PDF

A filtered 50 mW continuous-wave pump (λp=1555.5nm) is coupled into chip-A and split into two paths using a multimode interference (MMI) coupler with a 50/50 splitting ratio [44] [Fig. 1(d)]. Each path is connected to a photon-pair source. One photon pair is produced in superposition between these two sources, which, after post-selection on measuring a coincidence, yields the photon-number entangled state (|1s1i|0s0iei2θss|0s0i|1s1i)/2, where θss is the phase after the two sources [22]. Each source produces signal–idler photon pairs (λs=1550.7nm, λi=1560.3nm) via spontaneous four-wave mixing (SFWM, [19]) inside a 20-mm-long spiraled waveguide [Fig. 1(c)]. Signal and idler photons are probabilistically separated by two demultiplexing MMI couplers, and post-selected by two off-chip spectral filters (with a 25% success probability; see Supplement 1). These modes are then swapped using a waveguide crossing to yield a path-entangled qubit-basis Bell state |Φ±=(|00±|11)/2 (when θss equals to (n+1/2)π or nπ for an integer n, with the subscripts referring to signal or idler photons).

The signal qubit is manipulated and measured on the same chip (chip-A) by a single qubit measurement stage A(θAZ,θAY). This consists of a thermo-optically driven Mach–Zehnder interferometer (MZI) with an additional thermal phase shifter [Fig. 1(d)]. The path-encoded idler qubit is directed to an on-chip path-to-polarization converter (PPC). This device, described in more detail in the next section, coherently interconverts the qubit from an on-chip path encoding to an in-fiber polarization encoding. After transmission across the fiber link, chip-B reverses this process, converting the polarization-encoded qubit back to on-chip path encoding, via a second PPC. There, it is measured by a second single qubit measurement stage B(θBZ,θBY) [Fig. 1(b)]. In our experiment, the QPI consists of the fiber link bracketed by these two PPCs.

The polarization in the fiber can drift over time due to changes in environmental conditions (stress, vibrations, temperature, etc.). Due to the relatively short length of fiber used in this experiment (10 m), the fiber link was used without any control of its environment, other than to fix it to our optical table. Longer links may need active phase (i.e., polarization) compensation and control [38].

After configuring the measurements on the two chips, photon pairs were detected by two fiber-coupled superconducting nanowire single-photon detectors (SNSPDs) with 50% efficiency and 800Hz dark counts [45], after passing through relatively narrow 1.2 nm spectral band-pass filters. Finally, photon coincident counts were recorded using a time interval analyzer. At the output of chip-A, 500 photon pairs per second were measured, dropping to 12 pairs per second after the idler photon had additionally traversed the QPI and chip-B. Ultimately, signal and idler photons had experienced 18 and 34 dB total attenuation, respectively.

B. Path-Polarization Interconversion

The PPC converts the two orthogonal polarization modes of the fiber into the fundamental transverse-electric (TE) modes of two on-chip waveguides. The stronger confinement of the TE mode in our silicon waveguide geometry (500nm×220nm) facilitates more efficient nonlinear optical photon-pair sources [39], and a higher integration density. Accordingly, we designed the PPC to couple into the TE mode of the silicon waveguide. Our PPC is implemented using a 2D grating coupler [see Fig. 1(e)], essentially formed by superposing two one-dimensional (1D) grating couplers at right angles [40,41]. In this way, the polarization state of the SMF fiber-transmitted photon is determined by the two-waveguide on-chip state, and vice versa, achieving path-polarization interconversion. Further details are provided in Appendix A and Supplement 1.

To verify the PPC coherent mapping, we prepared arbitrary bright-light polarization states using bulk optical components and coupled them into the on-chip receiver [see Fig. 2(a)]. The PPC allowed us to convert the polarization states into path-encoded states, which we analyzed on-chip performing quantum state tomography [34,46]. We prepared a set of six polarization states ρpol in bulk optics, and measured the corresponding on-chip path states ρpath; these states are, respectively, shown as Bloch (or Poincare) vectors in Figs. 2(b) and 2(c). We provide the full density matrix data of these states in Supplement 1; these data correspond directly with the plotted Bloch vectors. The overlap between the input states and measured states can be described by the state fidelity, which is defined as Fstate=(Tr[(ρpol1/2ρpathρpol1/2)1/2])2. We find a mean state fidelity of the six states of 98.82±0.73%.

 figure: Fig. 2.

Fig. 2. Interconversion of polarization encoding and path encoding. (a) Initial arbitrary polarization-encoded states α|H+β|V (|H and |V are two orthogonally polarized states) were prepared by using a set of bulk optic polarizer (P), half-wave plate (HWP), and quarter-wave plate (QWP). A fiber-based polarization controller was used to compensate polarization rotation in the single-mode fiber. The PPC interconverted the polarization-encoded states into on-chip path-encoded states α|0+β|1, where |0 and |1 denote path states in two waveguides. The path-encoded states were then analyzed using the integrated analyzer B(θBZ,θBY) to implement state tomography. (b),(c) Bloch sphere representation of (b) ideal polarization-encoded states |H, |V, |D, |A, |R, and |L in bulk optics (red points), and (c) measured path-encoded states |0, |1, |+, |, |+i, and |i on chip (blue points). The density matrix presentation of all these states is provided in Supplement 1. Indicated fidelity represents the mean over the six measured states. (d) Reconstructed process matrix χ of the PPC using the quantum process tomography.

Download Full Size | PPT Slide | PDF

We also fully quantify the PPC process using a quantum process tomography [34]. This can be mathematically described by a process matrix χ, defined by ρpath=mn(EmρpolEnχmn), where Ei are the identity I and Pauli matrices X, Y, and Z, respectively. By injecting the ρpol states into the PPC and measuring the ρpath states, we estimated the process matrix χ of the PPC, shown in Fig. 2(d). We find a high process fidelity of 98.24±0.82%, defined as Fprocess=Tr[χidealχ], where χideal is the ideal process matrix with unit (I, I) component. The X, Y, and Z amplitudes of the matrix χ represent the probabilities of a bit-flip or phase-flip error in the PPC interconversion. The process fidelity is directly related to the device cross-talk, which we estimate as 18 dB (98.4%). PPC designs with improved cross-talk (and loss) have been demonstrated [47,48].

C. Entanglement Correlation Fringes

Our first observation of entanglement distribution between the two chips took the form of nonlocal fringes. We configured chip-A to produce entangled photons. These photons were collected at ports D1 and D2 and routed to the detectors. Through a continual scanning of θSS, we observed “λ” (classical) and “λ/2” (quantum) interference fringes with high visibility (defined as V=1Nmin/Nmax) of 99.99±0.01% and 99.36±0.17%, respectively [Fig. 3(a)]. The high visibility of this phase-doubled fringe is a clear signature of the high-quality photon-number entanglement produced inside chip-A [22,12]. These high visibilities arise from well-balanced MMI couplers [44] and from a good spectral overlap between the two sources within the narrow bandwidth of the signal and idler filters. The photon-number entangled state evolves into the path-entangled Bell states |Φ+ or |Φ, depending on the setting of θSS (as described previously).

 figure: Fig. 3.

Fig. 3. Entanglement fringes. (a) “λ”-classical interference (cyan) and “λ/2”-quantum interference (red) fringes measured on chip-A. Bright light was measured (normalized) at port D1, and coincidences were collected (accumulated 20 s) between ports D1 and D2. The θSS was rotated to produce the fringes, when A(θAZ,θAY) was set as the Hadamard gate. Photons are bunched or anti-bunched when θSS is nπ and (n+1/2)π. (b),(c) Entanglement correlation fringes for the Bell states |Φ+ and |Φ after being distributed across the two chips. Coincidences were collected (accumulated 30 s) between ports D1 and D3. The θBY on chip-B was continually rotated (θBZ=0) to obtain the fringes, as A(θAZ,θAY) on chip-A was projected onto the {|1,|0,|,|+} basis by setting the θAY to {0,π/2,π,3π/2} and θAZ to 0. The indicated visibility represents the mean over all four fringes. Error bars are given by Poissonian statistics, and accidental coincidences are subtracted.

Download Full Size | PPT Slide | PDF

The entangled qubits were then separated and distributed, with the signal qubit kept on chip-A and the idler sent via the QPI to chip-B. We measured correlation fringes across the two chips by continuously varying θBY, and setting θAY variously at 0, π/2, π, and 3π/2, while collecting coincidences between ports D1 and D3. Figures 3(b) and 3(c), respectively, show these fringes for the two Bell states |Φ+ and |Φ. These experimental results are in good agreement with the theoretical model cos2[(θAY±θBY)/2] [49], with a small phase offset due to device calibration. These fringes exhibit mean visibility of 97.63±0.39% and 96.85±0.51%, respectively, above the quantum threshold of 1/2 (71%) required to violate the Bell inequality [50]. These data show that entanglement is produced on chip-A and faithfully transferred to chip-B.

D. Bell–CHSH Measurement

A strict test of the existence and level of entanglement distributed between the two chips is the Bell–CHSH test (Clauser–Horne–Shimony–Holt) [51,52]. The CHSH inequality is defined as

S=|A1,B1+A1,B2+A2,B1A2,B2|2,
where Ai and Bi briefly denote the projectors A(0,θAY) and B(0,θBY) on two chips. Normalized correlation coefficients Ai,Bi were measured when θAY on chip-A was chosen to be {0,π/2} and θBY on chip-B was simultaneously chosen to be {π/4,3π/4}. Full data of Ai,Bi are provided in Table 1. Substituting them into Eq. (1), we obtained the directly measured SCHSH values of 2.638±0.039 and 2.628±0.041 for the two Bell states |Φ+ and |Φ, respectively. These SCHSH parameters violate the Bell–CHSH inequality by 16.4 and 15.3 standard deviations, respectively, strongly confirming that the two photons after distribution are highly entangled. Moreover, we also estimate the maximally achievable Sfringe value of 2.761±0.011 and 2.739±0.015 for the |Φ+ or |Φ states, from the mean visibility of the entanglement correlation fringes [Figs. 3(b) and 3(c)] according to Sfringe=22×V [50]. Figure 4 illustrates the good agreement between SCHSH and Sfringe, confirming the high performance of the chip-to-chip QPI.

Tables Icon

Table 1. Measured Bell–CHSH Correlation Coefficients

 figure: Fig. 4.

Fig. 4. Verification of chip-to-chip entanglement distribution and quantum photonic interconnect. The two Bell entangled states |Φ± were distributed across the two silicon chips. The S parameters were obtained using two methods. Green dotted columns are the directly measured SCHSH by substituting correlation coefficients (Table 1) into Eq. (1). Pink columns are the maximal achievable Sfringe, estimated from the mean visibility of correlation fringes in Fig. 3. The SCHSH and Sfringe parameters are in good agreement. Black and blue dashed lines denote the classical and quantum boundary. These results confirm the high level of entanglement after being distributed across the two chips, and the high quality of the quantum photonic interconnect. Each coincidence measurement was accumulated for 60 s. Accidental coincidences are subtracted, and error bars (±1 s. d.) are given by Poissonian statistics.

Download Full Size | PPT Slide | PDF

Several possible explanations exist for the small discrepancy between the Sfringe and SCHSH values. First, Sfringe strictly provides an upper bound on SCHSH, which is saturated only when the Bell–CHSH measurement projectors align with the state in question, and when the detection efficiencies are the same for all measurements [53]. Miscalibration of the measurement projectors, or fluctuations in the fiber-chip coupling (see Supplement 1, Fig. S4), could both reduce SCHSH.

3. CONCLUSION

We have now demonstrated high-fidelity entanglement generation, manipulation, interconversion, distribution, and measurement across two separate integrated photonic devices, achieving, to the best of our knowledge, the first chip-to-chip QPI. The use of path-polarization interconversion preserves coherence across the fully interconnected chip–fiber–chip system.

Our system could be improved in several ways. The efficiency and fidelity [47,48] of this interconversion process can be improved, and other off-chip encodings (e.g., orbital angular momentum [54,55] or time bin [56]) may further enrich this quantum interconnectivity. The spiral photon-pair sources used here require no tuning to achieve spectral overlap, whereas optical microring resonators facilitate higher photon flux, produce spectrally uncorrelated photons [23,57], and have a smaller footprint, but require careful tuning. Finally, the coupling fluctuations we observed could be avoided by optically packaging the chip, enabling a more robust and portable chip-to-chip quantum system.

A robust QPI will facilitate new applications of quantum technology. This chip-to-chip quantum interconnectivity could be used for short-distance secret key sharing between bank and user, for example. Remote quantum sensing could be made possible by this system, allowing the quantum metrology of remote, possibly birefringent, analytes. Chip-to-chip interconnectivity would bring architectural flexibility to the design of linear optical quantum computers, potentially allowing quantum computation to be distributed over chip-based subsystems. In addition, the use of silicon technology allows large-scale integration [28,58,59] and compatibility with microelectronics and telecommunications infrastructure [60], and offers the ability to monolithically integrate photon sources [19,23], circuits [22,28], and detectors [29,30]. Our work opens the door to multi-chip integrated quantum photonic systems, capable of robustly distributing and transmitting quantum information among chips.

APPENDIX A: DEVICE DESIGN AND FABRICATION

Chip-A and chip-B, respectively, have a device footprint of 1.2mm×0.5mm and 0.3mm×0.05mm. These devices were fabricated on the standard silicon-on-insulator wafer with a 220 nm silicon layer and a 2 μm buried silica oxide layer. The MMI couplers were designed as 2.8μm×27μm to get a nearly balanced splitting ratio [Fig. 1(d)]. MMIs can offer a large bandwidth and large fabrication tolerance. We used the same MMI design as in Ref. [22], and we both observed high-visibility classical and quantum interference, reflecting its excellent reproducibility. Spiraled waveguide sources with a 2 cm length were used to create photon pairs. The 1D grating couplers consist of a periodic 315 nm silicon layer with a 630 nm pitch. The 2D grating couplers include 10μm×10μm hole arrays with a 390 nm diameter and 605 nm pitch. Resistive heaters with a 50 μm length were designed and formed by a Ti/TiN metal layer. The devices were fabricated using the deep-UV (193 nm) lithography at LETI-ePIXfab. Silicon waveguides were 220 nm fully etched, while grating couplers were 70 nm shallow etched. The devices were covered by a 1.6 μm silica oxide layer.

APPENDIX B: DEVICE CHARACTERIZATIONS

Optical accesses and electric accesses were independently controlled on two chips (Supplement 1, Fig. S1). Optical access was achieved using V-groove single-mode fiber arrays with a 127 μm pitch. Fibers were titled with an angle of φ=10°12° to guarantee grating couplers work at the required wavelengths (Fig. 1). The waveguide crosser had a cross-talk of about 40dB. The extinction ratio of the MZI structures was measured to be more than 30 dB, corresponding to MMIs with 50%±1% reflectivity. The polarization extinction ratio of 1D and 2D grating couplers was measured to be larger than 20 and 18 dB, respectively. Excess loss of 1D and 2D grating couplers was about 4.8 and 7.6dB at peak wavelengths, respectively (see Supplement 1, Fig. S2). We made estimations of losses from different contributors in the full system: 6dB from off-chip filters, 6dB from SNSPDs, 9.5dB from 1D grating couplers, 15.2dB from 2D grating couplers, 6dB from demultiplexing MMIs, and 8dB from MMI loss and propagation loss in waveguides. In total, signal and idler photons, respectively, experienced 18 and 34dB attenuation. We tested several copies of the devices, and they all exhibited similar performance.

All thermal-driven phase shifters were controlled using homemade electronic controllers. Wire bounding technology was used to contact heaters’ transmission lines. Optical power was recorded as a function of electric power added on heaters. The optical–electric power contour was fitted and used to construct the mapping between the required states and electric power. Supplement 1, Fig. S3 shows the calibration results of chip-A’s and chip-B’s state analyzers. To avoid the influence of temperature variation, both chips were mounted on temperature-stabilized stages. The pump light propagates collinearly with single photons, and we use this bright light to perform fiber realignment using piezo-electronic stacks, and to monitor that photon states are stable in time throughout the full system. Supplement 1, Fig. S4 shows the stability of the chip-to-chip system, which indicates that path-encoded states on the two chips and polarization-encoded states in the fiber are both stable in time.

Funding

Engineering and Physical Sciences Research Council (EPSRC); European Research Council (ERC); Photonic Integrated Compound Quantum Encoding (PICQUE); FP7 Action: Beyond the Barriers of Optical Integration (BBOI); PHORBITECH; QUANTIP; Army Research Office (ARO) (W911NF-14-1-0133); Air Force Office of Scientific Research (AFOSR); ImPACT Program of the Cabinet Office Japan; Centre for Nanoscience and Quantum Information (NSQI); Natural Sciences and Engineering Research Council of Canada (NSERC); Alexander Graham Bell Canada Graduate Scholarship; Royal Society Wolfson Merit Award; Royal Academy of Engineering.

Acknowledgment

We thank G. D. Marshall and W. A. Murray for experiment assistance, and A. Laing, C. Erven, T. Rudolph, G. J. Mendoza, J. C. F. Matthews, S. Paesani, D. Dai, Y. Ding, P. J. Shadbolt, P. Turner, L. Kling, and X. Cai for useful discussions.

 

See Supplement 1 for supporting content.

REFERENCES

1. H. J. Kimble, “The quantum internet,” Nature 453, 1023–1030 (2008). [CrossRef]  

2. N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007). [CrossRef]  

3. V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011). [CrossRef]  

4. T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010). [CrossRef]  

5. J. L. O’Brien, “Optical quantum computing,” Science 318, 1567–1570 (2007). [CrossRef]  

6. J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012). [CrossRef]  

7. X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012). [CrossRef]  

8. R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004). [CrossRef]  

9. S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012). [CrossRef]  

10. K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014). [CrossRef]  

11. J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999). [CrossRef]  

12. J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009). [CrossRef]  

13. A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012). [CrossRef]  

14. T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007). [CrossRef]  

15. N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014). [CrossRef]  

16. K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007). [CrossRef]  

17. M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015). [CrossRef]  

18. R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012). [CrossRef]  

19. S. Clemmen, K. P. Huy, W. Bogaerts, R. G. Baets, P. Emplit, and S. Massar, “Continuous wave photon pair generation in silicon-on-insulator waveguides and ring resonators,” Opt. Express 17, 16558–16570 (2009). [CrossRef]  

20. A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008). [CrossRef]  

21. P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012). [CrossRef]  

22. J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014). [CrossRef]  

23. J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015). [CrossRef]  

24. S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

25. B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014). [CrossRef]  

26. A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011). [CrossRef]  

27. J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015). [CrossRef]  

28. N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

29. W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012). [CrossRef]  

30. F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015). [CrossRef]  

31. N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014). [CrossRef]  

32. T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

33. G. Li, “Recent advances in coherent optical communication,” Adv. Opt. Photon. 1, 279–307 (2009). [CrossRef]  

34. M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, 2004).

35. X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015). [CrossRef]  

36. V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012). [CrossRef]  

37. T. Inagaki, N. Matsuda, O. Tadanaga, M. Asobe, and H. Takesue, “Entanglement distribution over 300 km of fiber,” Opt. Express 21, 23241–23249 (2013). [CrossRef]  

38. H. Hübel, M. R. Vanner, T. Lederer, B. Blauensteiner, T. Lorünser, A. Poppe, and A. Zeilinger, “High-fidelity transmission of polarization encoded qubits from an entangled source over 100 km of fiber,” Opt. Express 15, 7853–7862 (2007). [CrossRef]  

39. N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

40. L. Olislager, J. Safioui, S. Clemmen, K. P. Huy, W. Bogaerts, R. Baets, P. Emplit, and S. Massar, “Silicon-on-insulator integrated source of polarization-entangled photons,” Opt. Lett. 38, 1960–1962 (2013). [CrossRef]  

41. D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003). [CrossRef]  

42. D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014). [CrossRef]  

43. X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012). [CrossRef]  

44. D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012). [CrossRef]  

45. S. Miki, T. Yamashita, H. Terai, and Z. Wang, “High performance fiber-coupled NbTiN superconducting nanowire single photon detectors with Gifford-McMahon cryocooler,” Opt. Express 21, 10208–10214 (2013). [CrossRef]  

46. D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

47. W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013). [CrossRef]  

48. L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

49. P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995). [CrossRef]  

50. J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990). [CrossRef]  

51. J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969). [CrossRef]  

52. K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013). [CrossRef]  

53. G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998). [CrossRef]  

54. R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014). [CrossRef]  

55. M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014). [CrossRef]  

56. C. Xiong, X. Zhang, A. Mahendra, J. He, D.-Y. Choi, C. J. Chae, D. Marpaung, A. Leinse, R. G. Heideman, M. Hoekman, C. G. H. Roeloffzen, R. M. Oldenbeuving, P. W. L. van Dijk, C. Taddei, P. H. W. Leong, and B. J. Eggleton, “Compact and reconfigurable silicon nitride time-bin entanglement circuit,” Optica 2, 724–727 (2015). [CrossRef]  

57. D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015). [CrossRef]  

58. J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013). [CrossRef]  

59. S. Han, T. J. Seok, N. Quack, B.-W. Yoo, and M. C. Wu, “Large-scale silicon photonic switches with movable directional couplers,” Optica 2, 370–375 (2015). [CrossRef]  

60. W. Bogaerts, R. Baets, P. Dumon, V. Wiaux, S. Beckx, D. Taillaert, B. Luyssaert, J. Van Campenhout, P. Bienstman, and D. Van Thourhout, “Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology,” J. Lightwave Technol. 23, 401–412 (2005). [CrossRef]  

References

  • View by:

  1. H. J. Kimble, “The quantum internet,” Nature 453, 1023–1030 (2008).
    [Crossref]
  2. N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007).
    [Crossref]
  3. V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
    [Crossref]
  4. T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
    [Crossref]
  5. J. L. O’Brien, “Optical quantum computing,” Science 318, 1567–1570 (2007).
    [Crossref]
  6. J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
    [Crossref]
  7. X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
    [Crossref]
  8. R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
    [Crossref]
  9. S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
    [Crossref]
  10. K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
    [Crossref]
  11. J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
    [Crossref]
  12. J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
    [Crossref]
  13. A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
    [Crossref]
  14. T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
    [Crossref]
  15. N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
    [Crossref]
  16. K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
    [Crossref]
  17. M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
    [Crossref]
  18. R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
    [Crossref]
  19. S. Clemmen, K. P. Huy, W. Bogaerts, R. G. Baets, P. Emplit, and S. Massar, “Continuous wave photon pair generation in silicon-on-insulator waveguides and ring resonators,” Opt. Express 17, 16558–16570 (2009).
    [Crossref]
  20. A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
    [Crossref]
  21. P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
    [Crossref]
  22. J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
    [Crossref]
  23. J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
    [Crossref]
  24. S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).
  25. B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
    [Crossref]
  26. A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
    [Crossref]
  27. J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
    [Crossref]
  28. N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).
  29. W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
    [Crossref]
  30. F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
    [Crossref]
  31. N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
    [Crossref]
  32. T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).
  33. G. Li, “Recent advances in coherent optical communication,” Adv. Opt. Photon. 1, 279–307 (2009).
    [Crossref]
  34. M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, 2004).
  35. X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
    [Crossref]
  36. V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
    [Crossref]
  37. T. Inagaki, N. Matsuda, O. Tadanaga, M. Asobe, and H. Takesue, “Entanglement distribution over 300  km of fiber,” Opt. Express 21, 23241–23249 (2013).
    [Crossref]
  38. H. Hübel, M. R. Vanner, T. Lederer, B. Blauensteiner, T. Lorünser, A. Poppe, and A. Zeilinger, “High-fidelity transmission of polarization encoded qubits from an entangled source over 100  km of fiber,” Opt. Express 15, 7853–7862 (2007).
    [Crossref]
  39. N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).
  40. L. Olislager, J. Safioui, S. Clemmen, K. P. Huy, W. Bogaerts, R. Baets, P. Emplit, and S. Massar, “Silicon-on-insulator integrated source of polarization-entangled photons,” Opt. Lett. 38, 1960–1962 (2013).
    [Crossref]
  41. D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
    [Crossref]
  42. D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014).
    [Crossref]
  43. X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
    [Crossref]
  44. D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
    [Crossref]
  45. S. Miki, T. Yamashita, H. Terai, and Z. Wang, “High performance fiber-coupled NbTiN superconducting nanowire single photon detectors with Gifford-McMahon cryocooler,” Opt. Express 21, 10208–10214 (2013).
    [Crossref]
  46. D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).
  47. W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
    [Crossref]
  48. L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.
  49. P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
    [Crossref]
  50. J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990).
    [Crossref]
  51. J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
    [Crossref]
  52. K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
    [Crossref]
  53. G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
    [Crossref]
  54. R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
    [Crossref]
  55. M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
    [Crossref]
  56. C. Xiong, X. Zhang, A. Mahendra, J. He, D.-Y. Choi, C. J. Chae, D. Marpaung, A. Leinse, R. G. Heideman, M. Hoekman, C. G. H. Roeloffzen, R. M. Oldenbeuving, P. W. L. van Dijk, C. Taddei, P. H. W. Leong, and B. J. Eggleton, “Compact and reconfigurable silicon nitride time-bin entanglement circuit,” Optica 2, 724–727 (2015).
    [Crossref]
  57. D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
    [Crossref]
  58. J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
    [Crossref]
  59. S. Han, T. J. Seok, N. Quack, B.-W. Yoo, and M. C. Wu, “Large-scale silicon photonic switches with movable directional couplers,” Optica 2, 370–375 (2015).
    [Crossref]
  60. W. Bogaerts, R. Baets, P. Dumon, V. Wiaux, S. Beckx, D. Taillaert, B. Luyssaert, J. Van Campenhout, P. Bienstman, and D. Van Thourhout, “Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology,” J. Lightwave Technol. 23, 401–412 (2005).
    [Crossref]

2015 (8)

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

C. Xiong, X. Zhang, A. Mahendra, J. He, D.-Y. Choi, C. J. Chae, D. Marpaung, A. Leinse, R. G. Heideman, M. Hoekman, C. G. H. Roeloffzen, R. M. Oldenbeuving, P. W. L. van Dijk, C. Taddei, P. H. W. Leong, and B. J. Eggleton, “Compact and reconfigurable silicon nitride time-bin entanglement circuit,” Optica 2, 724–727 (2015).
[Crossref]

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

S. Han, T. J. Seok, N. Quack, B.-W. Yoo, and M. C. Wu, “Large-scale silicon photonic switches with movable directional couplers,” Optica 2, 370–375 (2015).
[Crossref]

2014 (9)

D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014).
[Crossref]

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

2013 (6)

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

S. Miki, T. Yamashita, H. Terai, and Z. Wang, “High performance fiber-coupled NbTiN superconducting nanowire single photon detectors with Gifford-McMahon cryocooler,” Opt. Express 21, 10208–10214 (2013).
[Crossref]

T. Inagaki, N. Matsuda, O. Tadanaga, M. Asobe, and H. Takesue, “Entanglement distribution over 300  km of fiber,” Opt. Express 21, 23241–23249 (2013).
[Crossref]

L. Olislager, J. Safioui, S. Clemmen, K. P. Huy, W. Bogaerts, R. Baets, P. Emplit, and S. Massar, “Silicon-on-insulator integrated source of polarization-entangled photons,” Opt. Lett. 38, 1960–1962 (2013).
[Crossref]

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

2012 (12)

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

2011 (2)

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
[Crossref]

2010 (1)

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

2009 (3)

2008 (2)

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

H. J. Kimble, “The quantum internet,” Nature 453, 1023–1030 (2008).
[Crossref]

2007 (5)

N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007).
[Crossref]

J. L. O’Brien, “Optical quantum computing,” Science 318, 1567–1570 (2007).
[Crossref]

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
[Crossref]

H. Hübel, M. R. Vanner, T. Lederer, B. Blauensteiner, T. Lorünser, A. Poppe, and A. Zeilinger, “High-fidelity transmission of polarization encoded qubits from an entangled source over 100  km of fiber,” Opt. Express 15, 7853–7862 (2007).
[Crossref]

2005 (1)

2004 (1)

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

2003 (1)

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

2001 (1)

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

1999 (1)

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

1998 (1)

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

1995 (1)

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

1990 (1)

J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990).
[Crossref]

1969 (1)

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

Abolghasem, P.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Alibart, O.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Anisimova, E.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Aolita, L.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Asobe, M.

Aspelmeyer, M.

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

Assefa, S.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Ayazi, A.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Azzini, S.

Baets, R.

Baets, R. G.

Bajoni, D.

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Barbieri, M.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Bartkiewicz, K.

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

Barz, S.

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

Baudot, C.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Beckx, S.

Bellei, F.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Benjamin, S. C.

N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
[Crossref]

Berggren, K. K.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Berroth, M.

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

Bienstman, P.

Bijlani, B. J.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Blauensteiner, B.

Boeuf, F.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Bogaerts, W.

Bongioanni, I.

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Bonneau, D.

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Borel, P.

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

Bowers, J. E.

D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014).
[Crossref]

Broadbent, A.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

Browne, D. E.

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

Cai, X.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Cai, X. D.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Cao, Y.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Carolan, J.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Chae, C. J.

Chen, L.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

Chen, M. C.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Chen, Y. A.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Chi, Y.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Choi, D.-Y.

Chong, H.

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

Chuang, I. L.

M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, 2004).

Cirac, J. I.

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

Clark, A. S.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Clauser, J. F.

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

Clemmen, S.

Collins, M. J.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Crespi, A.

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Cryan, M. J.

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

D’Ambrosio, V.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Dai, D.

D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014).
[Crossref]

Dane, A.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

De Dobbelaere, P.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

De La Rue, R.

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

De Micheli, M. P.

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Dorenbos, S. N.

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Dumon, P.

Eggleton, B. J.

C. Xiong, X. Zhang, A. Mahendra, J. He, D.-Y. Choi, C. J. Chae, D. Marpaung, A. Leinse, R. G. Heideman, M. Hoekman, C. G. H. Roeloffzen, R. M. Oldenbeuving, P. W. L. van Dijk, C. Taddei, P. H. W. Leong, and B. J. Eggleton, “Compact and reconfigurable silicon nitride time-bin entanglement circuit,” Optica 2, 724–727 (2015).
[Crossref]

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Eisert, J.

K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
[Crossref]

Ekert, A. K.

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

Emplit, P.

Engin, E.

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Englund, D.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Ezaki, M.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Fickler, R.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

Fisher, K. A. G.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Fitzsimons, J. F.

N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
[Crossref]

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

Frandsen, L.

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

Fukuda, H.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Galland, C.

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Galli, M.

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Gates, J. C.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Giovannetti, V.

V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
[Crossref]

Gisin, N.

N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007).
[Crossref]

Gloeckner, S.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Goltsman, G. N.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Grassani, D.

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Hadfield, R. H.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Han, S.

Harris, N. C.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Harrold, C.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Hashimoto, T.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

He, J.

Heideman, R. G.

Helmy, A. S.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Herbst, T.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Hochberg, M.

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Hoekman, M.

Holt, R. A.

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

Hon, K. Y.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Horn, R.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Horne, M. A.

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

Horst, B.

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

Hosseini, E. S.

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

Hu, X.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Huang, Y. M.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Hübel, H.

Huber, M.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

Huelga, S. F.

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

Humphreys, P. C.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Huy, K. P.

Iizuka, N.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Inagaki, T.

Itoh, M.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

James, D. F. V.

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

Jelezko, F.

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

Jennewein, T.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

Jia, J. J.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Jiang, Y.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Jin, X. M.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Johnson-Morris, B.

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Jones, T.

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Jones, T. B.

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Kaiser, F.

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Kaltenbaek, R.

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

Kang, D.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Kashefi, E.

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

Kharel, P.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Kieling, K.

K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
[Crossref]

Kimble, H. J.

H. J. Kimble, “The quantum internet,” Nature 453, 1023–1030 (2008).
[Crossref]

Kofler, J.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Kolthammer, W. S.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Kropatschek, S.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Kundys, D.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Kunze, A.

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

Kwiat, P. G.

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

Ladd, T. D.

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

Laflamme, R.

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

Lahini, Y.

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Laing, A.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

Langford, N. K.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Lapkiewicz, R.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

Lavery, M. P. J.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

Lavoie, J.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Le Jeannic, H.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Lederer, T.

Lee, C.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Leinse, A.

Lemr, K.

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

Leong, P. H. W.

Li, G.

Li, L.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Li, M.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Liao, S. K.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Lindenthal, M.

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

Liscidini, M.

Liu, C.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Liu, N. L.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Lloyd, S.

V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
[Crossref]

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Lobino, M.

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

Lopez-Garcia, M.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

Lorünser, T.

Lu, C. Y.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Lu, H.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Luyssaert, B.

Ma, X. S.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Macchiavello, C.

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

Maccone, L.

V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
[Crossref]

Mahendra, A.

Makarov, V.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Marpaung, D.

Marrucci, L.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Marshall, G. D.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

Marsili, F.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Martin, A.

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Martín-López, E.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Masini, G.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Massar, S.

Mataloni, P.

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Matsuda, N.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

T. Inagaki, N. Matsuda, O. Tadanaga, M. Asobe, and H. Takesue, “Entanglement distribution over 300  km of fiber,” Opt. Express 21, 23241–23249 (2013).
[Crossref]

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Matthews, J. C. F.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
[Crossref]

Mattle, K.

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

Meany, T.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Mech, A.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Mekis, A.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Metcalf, B. J.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Miki, S.

Minaeva, O.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Miranowicz, A.

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

Monroe, C.

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

Mower, J.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Munro, W. J.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

Nagali, E.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Nagata, T.

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

Najafi, F.

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

Nakamura, Y.

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

Natarajan, C. M.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Naylor, W.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Neal, C. R.

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

Ngah, L. A.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Nickerson, N. H.

N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
[Crossref]

Nielsen, M. A.

M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, 2004).

O’Brien, J. L.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
[Crossref]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

J. L. O’Brien, “Optical quantum computing,” Science 318, 1567–1570 (2007).
[Crossref]

Oguma, M.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Ohira, K.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Okamoto, R.

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

Oldenbeuving, R. M.

Olislager, L.

Osellame, R.

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Ostrowsky, D. B.

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Padgett, M. J.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

Pan, G. S.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Pan, J. W.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Pant, M.

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Peng, C. Z.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Pernice, W. H. P.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Peruzzo, A.

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

Phillips, D. B.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

Pinguet, T.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Politi, A.

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
[Crossref]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

Poppe, A.

Prabhu, M.

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Prevedel, R.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Quack, N.

Ramponi, R.

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Rarity, J. G.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990).
[Crossref]

Ren, J. G.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Resch, K. J.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Roeloffzen, C. G. H.

Rudolph, T.

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
[Crossref]

Russell, N. J.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Safioui, J.

Sahni, S.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Sansoni, L.

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Sasaki, K.

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

Scheidl, T.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Schuck, C.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Sciarrino, F.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Segovia, M. G.

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

Seok, T. J.

Sergienko, A. V.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

Shadbolt, P.

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

Shadbolt, P. J.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

Shalm, L. K.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Shih, Y.

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

Shimizu, K.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Shimony, A.

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

Silverstone, J. W.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

Simbula, A.

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Simon, C.

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

Sipe, J. E.

Slussarenko, S.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Smith, B. J.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Smith, P. G. R.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Sorel, M.

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Sparrow, C.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

Spring, J. B.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Steel, M. J.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Stefanov, A.

J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
[Crossref]

Steinbrecher, G. R.

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

Strain, M.

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

Strain, M. J.

D. Grassani, S. Azzini, M. Liscidini, M. Galli, M. J. Strain, M. Sorel, J. E. Sipe, and D. Bajoni, “Micrometer-scale integrated silicon source of time-energy entangled photons,” Optica 2, 88–94 (2015).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Su, Z. E.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Sun, J.

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

Sun, P.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Suzuki, N.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Tadanaga, O.

Taddei, C.

Taillaert, D.

W. Bogaerts, R. Baets, P. Dumon, V. Wiaux, S. Beckx, D. Taillaert, B. Luyssaert, J. Van Campenhout, P. Bienstman, and D. Van Thourhout, “Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology,” J. Lightwave Technol. 23, 401–412 (2005).
[Crossref]

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

Takesue, H.

T. Inagaki, N. Matsuda, O. Tadanaga, M. Asobe, and H. Takesue, “Entanglement distribution over 300  km of fiber,” Opt. Express 21, 23241–23249 (2013).
[Crossref]

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Takeuchi, S.

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

Tang, H. X.

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

Tanner, M. G.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Tanzilli, S.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Tapster, P. R.

J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990).
[Crossref]

Terai, H.

Thew, R.

N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007).
[Crossref]

Thomas-Peter, N.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Thompson, M. G.

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

Timurdogan, E.

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

Tokura, Y.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Tsuchizawa, T.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Ursin, R.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

Vallone, G.

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

Van Campenhout, J.

van Dijk, P. W. L.

Van Thourhout, D.

Vanner, M. R.

Verde, M. R.

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

Verslegers, L. B.

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Vogel, W.

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

Walborn, S. P.

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

Walmsley, I. A.

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

Walther, P.

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

Wang, D.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Wang, J.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Wang, J. Y.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Wang, X. L.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Wang, Z.

Watts, M. R.

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

Weihs, G.

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

Weinfurter, H.

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

White, A. G.

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

Wiaux, V.

Williams, R. J.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Withford, M. J.

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

Wittmann, B.

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

Wu, D.

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

Wu, M. C.

Wu, Y.-P.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Xiong, C.

Xu, P.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Yaacobi, A.

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

Yamada, K.

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Yamashita, T.

Yan, Z.

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Yin, H.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Yin, J.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Yong, H. L.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Yoo, B.-W.

Yoshida, H.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Yu, S.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

Zaoui, W.

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

Zeilinger, A.

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

H. Hübel, M. R. Vanner, T. Lederer, B. Blauensteiner, T. Lorünser, A. Poppe, and A. Zeilinger, “High-fidelity transmission of polarization encoded qubits from an entangled source over 100  km of fiber,” Opt. Express 15, 7853–7862 (2007).
[Crossref]

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

Zhang, X.

Zhou, F.

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

Zhu, J.

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

Zwiller, V.

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Adv. Opt. Photon. (1)

Appl. Phys. Lett. (1)

A. Crespi, M. Lobino, J. C. F. Matthews, A. Politi, C. R. Neal, R. Ramponi, R. Osellame, and J. L. O’Brien, “Measuring protein concentration with entangled photons,” Appl. Phys. Lett. 100, 233704 (2012).
[Crossref]

IEEE Photon. Technol. Lett. (2)

D. Taillaert, H. Chong, P. Borel, L. Frandsen, R. De La Rue, and R. Baets, “A compact two-dimensional grating coupler used as a polarization splitter,” IEEE Photon. Technol. Lett. 15, 1249–1251 (2003).
[Crossref]

W. Zaoui, A. Kunze, W. Vogel, and M. Berroth, “CMOS-compatible polarization splitting grating couplers with a backside metal mirror,” IEEE Photon. Technol. Lett. 25, 1395–1397 (2013).
[Crossref]

J. Lightwave Technol. (1)

Laser Photon. Rev. (2)

T. Meany, L. A. Ngah, M. J. Collins, A. S. Clark, R. J. Williams, B. J. Eggleton, M. J. Steel, M. J. Withford, O. Alibart, and S. Tanzilli, “Hybrid photonic circuit for multiplexed heralded single photons,” Laser Photon. Rev. 8, L42–L46 (2014).

S. Tanzilli, A. Martin, F. Kaiser, M. P. De Micheli, O. Alibart, and D. B. Ostrowsky, “On the genesis and evolution of integrated quantum optics,” Laser Photon. Rev. 6, 115–143 (2012).

Nanophotonics (1)

D. Dai and J. E. Bowers, “Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects,” Nanophotonics 3, 283–311 (2014).
[Crossref]

Nat. Commun. (8)

V. D’Ambrosio, E. Nagali, S. P. Walborn, L. Aolita, S. Slussarenko, L. Marrucci, and F. Sciarrino, “Complete experimental toolbox for alignment-free quantum communication,” Nat. Commun. 3, 961 (2012).
[Crossref]

R. Fickler, R. Lapkiewicz, M. Huber, M. P. J. Lavery, M. J. Padgett, and A. Zeilinger, “Interface between path and OAM entanglement for high-dimensional photonic quantum information,” Nat. Commun. 5, 4502 (2014).
[Crossref]

M. J. Strain, X. Cai, J. Wang, J. Zhu, D. B. Phillips, L. Chen, M. Lopez-Garcia, J. L. O’Brien, M. G. Thompson, M. Sorel, and S. Yu, “Fast electrical switching of orbital angular momentum modes using ultra-compact integrated vortex emitters,” Nat. Commun. 5, 4856 (2014).
[Crossref]

J. W. Silverstone, D. Bonneau, M. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, “Qubit entanglement between ring resonator photon-pair sources on a silicon chip,” Nat. Commun. 6, 7948 (2015).
[Crossref]

A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2, 566 (2011).
[Crossref]

W. H. P. Pernice, C. Schuck, O. Minaeva, M. Li, G. N. Goltsman, A. V. Sergienko, and H. X. Tang, “High-speed and high efficiency travelling wave single-photon detectors embedded in nanophotonic circuits,” Nat. Commun. 3, 1325 (2012).
[Crossref]

F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6, 5873 (2015).
[Crossref]

K. A. G. Fisher, A. Broadbent, L. K. Shalm, Z. Yan, J. Lavoie, R. Prevedel, T. Jennewein, and K. J. Resch, “Quantum computing on encrypted data,” Nat. Commun. 5, 3074 (2014).
[Crossref]

Nat. Photonics (6)

J. C. F. Matthews, A. Politi, A. Stefanov, and J. L. O’Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346–350 (2009).
[Crossref]

N. Gisin and R. Thew, “Quantum communication,” Nat. Photonics 1, 165–171 (2007).
[Crossref]

V. Giovannetti, S. Lloyd, and L. Maccone, “Advances in quantum metrology,” Nat. Photonics 5, 222–229 (2011).
[Crossref]

B. J. Metcalf, J. B. Spring, P. C. Humphreys, N. Thomas-Peter, M. Barbieri, W. S. Kolthammer, X. M. Jin, N. K. Langford, D. Kundys, J. C. Gates, B. J. Smith, P. G. R. Smith, and I. A. Walmsley, “Quantum teleportation on a photonic chip,” Nat. Photonics 8, 770–774 (2014).
[Crossref]

P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson, and J. L. O’Brien, “Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit,” Nat. Photonics 6, 45–49 (2012).
[Crossref]

J. W. Silverstone, D. Bonneau, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, V. Zwiller, G. D. Marshall, J. G. Rarity, J. L. O’Brien, and M. G. Thompson, “On-chip quantum interference between silicon photon-pair sources,” Nat. Photonics 8, 104–108 (2014).
[Crossref]

Nature (7)

X. L. Wang, X. D. Cai, Z. E. Su, M. C. Chen, D. Wu, L. Li, N. L. Liu, C. Y. Lu, and J. W. Pan, “Quantum teleportation of multiple degrees of freedom of a single photon,” Nature 518, 516–519 (2015).
[Crossref]

T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien, “Quantum computers,” Nature 464, 45–53 (2010).
[Crossref]

J. Yin, J. G. Ren, H. Lu, Y. Cao, H. L. Yong, Y.-P. Wu, C. Liu, S. K. Liao, F. Zhou, Y. Jiang, X. D. Cai, P. Xu, G. S. Pan, J. J. Jia, Y. M. Huang, H. Yin, J. Y. Wang, Y. A. Chen, C. Z. Peng, and J. W. Pan, “Quantum teleportation and entanglement distribution over 100-kilometre free-space channels,” Nature 488, 185–188 (2012).
[Crossref]

X. S. Ma, T. Herbst, T. Scheidl, D. Wang, S. Kropatschek, W. Naylor, B. Wittmann, A. Mech, J. Kofler, E. Anisimova, V. Makarov, T. Jennewein, R. Ursin, and A. Zeilinger, “Quantum teleportation over 143 kilometres using active feedforward,” Nature 489, 269–273 (2012).
[Crossref]

R. Ursin, T. Jennewein, M. Aspelmeyer, R. Kaltenbaek, M. Lindenthal, P. Walther, and A. Zeilinger, “Quantum teleportation across the Danube,” Nature 430, 849 (2004).
[Crossref]

H. J. Kimble, “The quantum internet,” Nature 453, 1023–1030 (2008).
[Crossref]

J. Sun, E. Timurdogan, A. Yaacobi, E. S. Hosseini, and M. R. Watts, “Large-scale nanophotonic phased array,” Nature 493, 195–199 (2013).
[Crossref]

New J. Phys. (1)

D. Bonneau, E. Engin, K. Ohira, N. Suzuki, H. Yoshida, N. Iizuka, M. Ezaki, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, V. Zwiller, J. L. O’Brien, and M. G. Thompson, “Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits,” New J. Phys. 14, 045003 (2012).
[Crossref]

Opt. Express (4)

Opt. Lett. (1)

Optica (3)

Phys. Rev. A (2)

K. Bartkiewicz, B. Horst, K. Lemr, and A. Miranowicz, “Entanglement estimation from Bell inequality violation,” Phys. Rev. A 88, 052105 (2013).
[Crossref]

J. I. Cirac, A. K. Ekert, S. F. Huelga, and C. Macchiavello, “Distributed quantum computation over noisy channels,” Phys. Rev. A 59, 4249–4254 (1999).
[Crossref]

Phys. Rev. A. (1)

D. F. V. James, P. G. Kwiat, W. J. Munro, and A. G. White, “Measurement of qubits,” Phys. Rev. A. 64, 052312 (2001).

Phys. Rev. Lett. (7)

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, “New high-intensity source of polarization entangled photon pairs,” Phys. Rev. Lett. 75, 4337–4341 (1995).
[Crossref]

J. G. Rarity and P. R. Tapster, “Experimental violation of Bell’s inequality based on phase and momentum,” Phys. Rev. Lett. 64, 2495–2498 (1990).
[Crossref]

J. F. Clauser, M. A. Horne, A. Shimony, and R. A. Holt, “Proposed experiment to test local hidden-variable theories,” Phys. Rev. Lett. 23, 880–884 (1969).
[Crossref]

G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, “Violation of Bell’s inequality under strict Einstein locality conditions,” Phys. Rev. Lett. 81, 5039–5043 (1998).
[Crossref]

K. Kieling, T. Rudolph, and J. Eisert, “Percolation, renormalization, and quantum computing with nondeterministic gates,” Phys. Rev. Lett. 99, 130501 (2007).
[Crossref]

M. G. Segovia, P. Shadbolt, D. E. Browne, and T. Rudolph, “From three-photon Greenberger-Horne-Zeilinger states to ballistic universal quantum computation,” Phys. Rev. Lett. 115, 020502 (2015).
[Crossref]

R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, A. S. Helmy, and G. Weihs, “Monolithic source of photon pairs,” Phys. Rev. Lett. 108, 153605 (2012).
[Crossref]

Phys. Rev. X (2)

N. H. Nickerson, J. F. Fitzsimons, and S. C. Benjamin, “Freely scalable quantum technologies using cells of 5-to-50 qubits with very lossy and noisy photonic links,” Phys. Rev. X 4, 041041 (2014).
[Crossref]

N. C. Harris, D. Grassani, A. Simbula, M. Pant, M. Galli, T. B. Jones, M. Hochberg, D. Englund, D. Bajoni, and C. Galland, “Integrated source of spectrally filtered correlated photons for large-scale quantum photonic systems,” Phys. Rev. X 4, 041047 (2014).
[Crossref]

Sci. Rep. (1)

N. Matsuda, H. Le Jeannic, H. Fukuda, T. Tsuchizawa, W. J. Munro, K. Shimizu, K. Yamada, Y. Tokura, and H. Takesue, “A monolithically integrated polarization entangled photon pair source on a silicon chip,” Sci. Rep. 2, 817 (2012).

Science (6)

X. Cai, J. Wang, M. J. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. L. O’Brien, M. G. Thompson, and S. Yu, “Integrated compact optical vortex beam emitters,” Science 338, 363–366 (2012).
[Crossref]

J. Carolan, C. Harrold, C. Sparrow, E. Martín-López, N. J. Russell, J. W. Silverstone, P. J. Shadbolt, N. Matsuda, M. Oguma, M. Itoh, G. D. Marshall, M. G. Thompson, J. C. F. Matthews, T. Hashimoto, J. L. O’Brien, and A. Laing, “Universal linear optics,” Science 349, 711–716 (2015).
[Crossref]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, “Silica-on-silicon waveguide quantum circuits,” Science 320, 646–649 (2008).
[Crossref]

T. Nagata, R. Okamoto, J. L. O’Brien, K. Sasaki, and S. Takeuchi, “Beating the standard quantum limit with four-entangled photons,” Science 316, 726–729 (2007).
[Crossref]

S. Barz, E. Kashefi, A. Broadbent, J. F. Fitzsimons, A. Zeilinger, and P. Walther, “Demonstration of blind quantum computing,” Science 335, 303–308 (2012).
[Crossref]

J. L. O’Brien, “Optical quantum computing,” Science 318, 1567–1570 (2007).
[Crossref]

Other (3)

N. C. Harris, G. R. Steinbrecher, J. Mower, Y. Lahini, M. Prabhu, T. Jones, M. Hochberg, S. Lloyd, and D. Englund, “Bosonic transport simulations in a large scale programmable nanophotonic processor,” arXiv:1507.03406 (2015).

M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, 2004).

L. B. Verslegers, A. Mekis, T. Pinguet, Y. Chi, G. Masini, P. Sun, A. Ayazi, K. Y. Hon, S. Sahni, S. Gloeckner, C. Baudot, F. Boeuf, and P. De Dobbelaere, “Design of low-loss polarization splitting grating couplers,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper JT4A.2.

Supplementary Material (1)

NameDescription
Supplement 1: PDF (3240 KB)      supplementary materials

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1.
Fig. 1. Quantum photonic interconnect and entanglement distribution between two integrated silicon photonic chips. (a) Chip-A comprises three stages, path-entangled state generation, arbitrary projective measurement A ( θ A Z , θ A Y ) , and path-polarization interconversion (PPC). (b) Chip-B includes projective measurement B ( θ B Z , θ B Y ) and PPC stages. On chip-A, signal–idler photon pairs are created in the spiraled waveguide single-photon source. Bell states | Φ ± are then produced when θ S S is controlled to be π / 2 or π . Idler qubits initially encoded in the path are coherently coupled to polarization encoding and transmitted through a 10 m single-mode optical fiber (SMF), and reversely converted back to path encoding on chip-B. The signal qubit is analyzed using A ( θ A Z , θ A Y ) on chip-A, and the idler qubit is analyzed using B ( θ B Z , θ B Y ) on chip-B. The 2D grating coupler, behaving as the path-polarization converter (PPC), is used to coherently interconvert photonic qubits between path encoding on chip and polarization encoding in fiber. (c)–(e) Optical microscopy images of (c) photon-pair source, (d) arbitrary state analyzer (inset shows the MMI splitter), and (e) 2D grating coupler PPC structure.
Fig. 2.
Fig. 2. Interconversion of polarization encoding and path encoding. (a) Initial arbitrary polarization-encoded states α | H + β | V ( | H and | V are two orthogonally polarized states) were prepared by using a set of bulk optic polarizer (P), half-wave plate (HWP), and quarter-wave plate (QWP). A fiber-based polarization controller was used to compensate polarization rotation in the single-mode fiber. The PPC interconverted the polarization-encoded states into on-chip path-encoded states α | 0 + β | 1 , where | 0 and | 1 denote path states in two waveguides. The path-encoded states were then analyzed using the integrated analyzer B ( θ B Z , θ B Y ) to implement state tomography. (b),(c) Bloch sphere representation of (b) ideal polarization-encoded states | H , | V , | D , | A , | R , and | L in bulk optics (red points), and (c) measured path-encoded states | 0 , | 1 , | + , | , | + i , and | i on chip (blue points). The density matrix presentation of all these states is provided in Supplement 1. Indicated fidelity represents the mean over the six measured states. (d) Reconstructed process matrix χ of the PPC using the quantum process tomography.
Fig. 3.
Fig. 3. Entanglement fringes. (a) “ λ ”-classical interference (cyan) and “ λ / 2 ”-quantum interference (red) fringes measured on chip-A. Bright light was measured (normalized) at port D1, and coincidences were collected (accumulated 20 s) between ports D1 and D2. The θ S S was rotated to produce the fringes, when A ( θ A Z , θ A Y ) was set as the Hadamard gate. Photons are bunched or anti-bunched when θ S S is n π and ( n + 1 / 2 ) π . (b),(c) Entanglement correlation fringes for the Bell states | Φ + and | Φ after being distributed across the two chips. Coincidences were collected (accumulated 30 s) between ports D1 and D3. The θ B Y on chip-B was continually rotated ( θ B Z = 0 ) to obtain the fringes, as A ( θ A Z , θ A Y ) on chip-A was projected onto the { | 1 , | 0 , | , | + } basis by setting the θ A Y to { 0 , π / 2 , π , 3 π / 2 } and θ A Z to 0. The indicated visibility represents the mean over all four fringes. Error bars are given by Poissonian statistics, and accidental coincidences are subtracted.
Fig. 4.
Fig. 4. Verification of chip-to-chip entanglement distribution and quantum photonic interconnect. The two Bell entangled states | Φ ± were distributed across the two silicon chips. The S parameters were obtained using two methods. Green dotted columns are the directly measured S CHSH by substituting correlation coefficients (Table 1) into Eq. (1). Pink columns are the maximal achievable S fringe , estimated from the mean visibility of correlation fringes in Fig. 3. The S CHSH and S fringe parameters are in good agreement. Black and blue dashed lines denote the classical and quantum boundary. These results confirm the high level of entanglement after being distributed across the two chips, and the high quality of the quantum photonic interconnect. Each coincidence measurement was accumulated for 60 s. Accidental coincidences are subtracted, and error bars ( ± 1 s. d.) are given by Poissonian statistics.

Tables (1)

Tables Icon

Table 1. Measured Bell–CHSH Correlation Coefficients

Equations (1)

Equations on this page are rendered with MathJax. Learn more.

S = | A 1 , B 1 + A 1 , B 2 + A 2 , B 1 A 2 , B 2 | 2 ,

Metrics