Abstract

A number of techniques exist to use an ensemble of atoms as a quantum memory for light. Many of these propose to use backward retrieval as a way to improve the storage and recall efficiency. We report on a demonstration of an off-resonant Raman memory that uses backward retrieval to achieve an efficiency of 65 ± 6% at a storage time of one pulse duration. The memory has a characteristic decay time of 60 μs, corresponding to a delay-bandwidth product of 160.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Full Article  |  PDF Article
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References

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2017 (3)

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

M. August and X. Ni, “Using recurrent neural networks to optimize dynamical decoupling for quantum memory,” Phys. Rev. A 95, 012335 (2017).
[Crossref]

J. Guo, L. Q. Chen, P. Yang, Z. Li, Y. Wu, X. Feng, C.-H. Yuan, Z. Y. Ou, and W. Zhang, “88% conversion efficiency with an atomic spin wave mediated mode selection,” Opt. Lett. 42, 1752–1755 (2017).
[Crossref] [PubMed]

2016 (2)

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

2015 (4)

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

K. Tikhonov, T. Golubeva, and Y. Golubev, “Atomic thermal motion effect on efficiency of a high-speed quantum memory,” Eur. Phys. J. D 69, 252 (2015).
[Crossref]

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

2014 (1)

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

2013 (3)

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
[Crossref] [PubMed]

B. Chen, K. Zhang, C. Bian, C. Qiu, C.-H. Yuan, L. Q. Chen, Z. Y. Ou, and W. Zhang, “Efficient raman frequency conversion by coherent feedback at low light intensity,” Opt. Express 21, 10490–10495 (2013).
[Crossref] [PubMed]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

2012 (6)

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

S. D. Jenkins, T. Zhang, and T. A. B. Kennedy, “Motional dephasing of atomic clock spin waves in an optical lattice,” J. Phys. B 45, 124005 (2012).
[Crossref]

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

2011 (3)

S. A. Moiseev and W. Tittel, “Optical quantum memory with generalized time-reversible atom-light interaction,” New J. Phys. 13, 063035 (2011).
[Crossref]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
[Crossref]

2010 (1)

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

2009 (2)

M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
[Crossref]

J.-L. Le Gouët and P. R. Berman, “Raman scheme for adjustable-bandwidth quantum memory,” Phys. Rev. A 80, 012320 (2009).
[Crossref]

2008 (4)

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

2007 (3)

N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
[Crossref]

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
[Crossref]

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

2006 (1)

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

2004 (1)

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

2001 (2)

F. Grosshans and P. Grangier, “Quantum cloning and teleportation criteria for continuous quantum variables,” Phys. Rev. A 64, 010301 (2001).
[Crossref]

S. A. Moiseev and S. Kröll, “Complete Reconstruction of the Quantum State of a Single-Photon Wave Packet Absorbed by a Doppler-Broadened Transition,” Phys. Rev. Lett. 87, 173601 (2001).
[Crossref] [PubMed]

2000 (1)

A. E. Kozhekin, K. Mølmer, and E. Polzik, “Quantum memory for light,” Phys. Rev. A 62, 033809 (2000).
[Crossref]

1998 (1)

H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
[Crossref]

1993 (1)

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

Abdolvand, A.

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

Afzelius, M.

M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
[Crossref]

N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
[Crossref]

Alexander, A. L.

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

André, A.

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
[Crossref]

August, M.

M. August and X. Ni, “Using recurrent neural networks to optimize dynamical decoupling for quantum memory,” Phys. Rev. A 95, 012335 (2017).
[Crossref]

Balic, V.

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

Barbieri, M.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

Bastian, J. W.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Berman, P. R.

J.-L. Le Gouët and P. R. Berman, “Raman scheme for adjustable-bandwidth quantum memory,” Phys. Rev. A 80, 012320 (2009).
[Crossref]

Bian, C.

Biercuk, M. J.

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

Braje, D. A.

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

Briegel, H.-J.

H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
[Crossref]

Buchler, B. C.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

Bustard, P. J.

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
[Crossref] [PubMed]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

Campbell, G.

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

Campbell, G. T.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

Champion, T. F. M.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

Chen, B.

Chen, L. Q.

Chou, C. W.

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
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H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
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A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

Davis, K. B.

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

de Riedmatten, H.

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
[Crossref]

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

Ding, D.-S.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
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S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
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Dür, W.

H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
[Crossref]

England, D. G.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
[Crossref] [PubMed]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

Everett, J. L.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

Everitt, P. J.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Feito, A.

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

Felinto, D.

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

Feng, X.

Frey, V.

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

Gisin, N.

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
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M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
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N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
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D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
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K. Tikhonov, T. Golubeva, and Y. Golubev, “Atomic thermal motion effect on efficiency of a high-speed quantum memory,” Eur. Phys. J. D 69, 252 (2015).
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Golubeva, T.

K. Tikhonov, T. Golubeva, and Y. Golubev, “Atomic thermal motion effect on efficiency of a high-speed quantum memory,” Eur. Phys. J. D 69, 252 (2015).
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Gorshkov, A. V.

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
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Grangier, P.

F. Grosshans and P. Grangier, “Quantum cloning and teleportation criteria for continuous quantum variables,” Phys. Rev. A 64, 010301 (2001).
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Grosshans, F.

F. Grosshans and P. Grangier, “Quantum cloning and teleportation criteria for continuous quantum variables,” Phys. Rev. A 64, 010301 (2001).
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Guo, G.-C.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Guo, J.

Hardman, K. S.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Harris, S. E.

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

Hengel, A. v. d.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Hétet, G.

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

Hope, J. J.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Hosseini, M.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

Hush, M.

M. Hush, “M-loop: Machine-learning online optimization package,” (2016).

Hush, M. R.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Jaksch, D.

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
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J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
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J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Jenkins, S. D.

S. D. Jenkins, T. Zhang, and T. A. B. Kennedy, “Motional dephasing of atomic clock spin waves in an optical lattice,” J. Phys. B 45, 124005 (2012).
[Crossref]

Jiang, Y.-K.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Jin, X. M.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

Jin, X.-M.

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

Joffe, M. A.

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

Kaczmarek, K. T.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

Kennedy, T. A. B.

S. D. Jenkins, T. Zhang, and T. A. B. Kennedy, “Motional dephasing of atomic clock spin waves in an optical lattice,” J. Phys. B 45, 124005 (2012).
[Crossref]

Ketterle, W.

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

Kimble, H. J.

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

Kolthammer, W. S.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

Kozhekin, A. E.

A. E. Kozhekin, K. Mølmer, and E. Polzik, “Quantum memory for light,” Phys. Rev. A 62, 033809 (2000).
[Crossref]

Kröll, S.

S. A. Moiseev and S. Kröll, “Complete Reconstruction of the Quantum State of a Single-Photon Wave Packet Absorbed by a Doppler-Broadened Transition,” Phys. Rev. Lett. 87, 173601 (2001).
[Crossref] [PubMed]

Kuhn, C. C. N.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Lam, P. K.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

Langford, N. K.

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

Laurat, J.

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

Lausten, R.

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
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Le Gouët, J.-L.

J.-L. Le Gouët and P. R. Berman, “Raman scheme for adjustable-bandwidth quantum memory,” Phys. Rev. A 80, 012320 (2009).
[Crossref]

Ledingham, P. M.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

Lee, K. C.

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

Li, Z.

Longdell, J. J.

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

Lorenz, V. O.

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

Luiten, A. N.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Lukin, M. D.

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
[Crossref]

Manju, P.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Martin, A.

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

Mavadia, S.

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

McDonald, G. D.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Michelberger, P.

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

Michelberger, P. S.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

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S. A. Moiseev and W. Tittel, “Optical quantum memory with generalized time-reversible atom-light interaction,” New J. Phys. 13, 063035 (2011).
[Crossref]

S. A. Moiseev and S. Kröll, “Complete Reconstruction of the Quantum State of a Single-Photon Wave Packet Absorbed by a Doppler-Broadened Transition,” Phys. Rev. Lett. 87, 173601 (2001).
[Crossref] [PubMed]

Mølmer, K.

A. E. Kozhekin, K. Mølmer, and E. Polzik, “Quantum memory for light,” Phys. Rev. A 62, 033809 (2000).
[Crossref]

Munns, J. H. D.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

Ni, X.

M. August and X. Ni, “Using recurrent neural networks to optimize dynamical decoupling for quantum memory,” Phys. Rev. A 95, 012335 (2017).
[Crossref]

Nunn, J.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Ou, Z. Y.

Petersen, I. R.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
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Pinel, O.

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

Plenio, M. B.

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

Poem, E.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

Polzik, E.

A. E. Kozhekin, K. Mølmer, and E. Polzik, “Quantum memory for light,” Phys. Rev. A 62, 033809 (2000).
[Crossref]

Pritchard, D. E.

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

Qiu, C.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

B. Chen, K. Zhang, C. Bian, C. Qiu, C.-H. Yuan, L. Q. Chen, Z. Y. Ou, and W. Zhang, “Efficient raman frequency conversion by coherent feedback at low light intensity,” Opt. Express 21, 10490–10495 (2013).
[Crossref] [PubMed]

Quinlivan, C. D.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Raymer, M. G.

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Reim, K.

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

Reim, K. F.

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

Riedmatten, H. De

M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
[Crossref]

Robins, N. P.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Russell, P. S. J.

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

Sangouard, N.

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
[Crossref]

N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
[Crossref]

Sastrawan, J.

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

Saunders, D. J.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

Schomburg, E. W.

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

Sellars, M. J.

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

Shi, B.-S.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
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Shi, S.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Simon, C.

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
[Crossref]

M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
[Crossref]

N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
[Crossref]

Sooriyabandara, M. A.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Sørensen, A. S.

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
[Crossref]

Sparkes, B. M.

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

Sprague, M. R.

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

Surmacz, K.

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Sussman, B.

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

Sussman, B. J.

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
[Crossref] [PubMed]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

Tikhonov, K.

K. Tikhonov, T. Golubeva, and Y. Golubev, “Atomic thermal motion effect on efficiency of a high-speed quantum memory,” Eur. Phys. J. D 69, 252 (2015).
[Crossref]

Tittel, W.

S. A. Moiseev and W. Tittel, “Optical quantum memory with generalized time-reversible atom-light interaction,” New J. Phys. 13, 063035 (2011).
[Crossref]

Waldermann, F. C.

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Walmsley, I. A.

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Wang, X.-S.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Wang, Z.

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

Wigley, P. B.

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Wu, Y.

Xiang, G.-Y.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Yang, P.

Yin, G. Y.

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

Yuan, C.-H.

Zhang, K.

Zhang, L.

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

Zhang, T.

S. D. Jenkins, T. Zhang, and T. A. B. Kennedy, “Motional dephasing of atomic clock spin waves in an optical lattice,” J. Phys. B 45, 124005 (2012).
[Crossref]

Zhang, W.

Zhou, Z.-Y.

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

Zoller, P.

H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
[Crossref]

Eur. Phys. J. D (1)

K. Tikhonov, T. Golubeva, and Y. Golubev, “Atomic thermal motion effect on efficiency of a high-speed quantum memory,” Eur. Phys. J. D 69, 252 (2015).
[Crossref]

J. Phys. B (2)

D. G. England, P. S. Michelberger, T. F. M. Champion, K. F. Reim, K. C. Lee, M. R. Sprague, X.-M. Jin, N. K. Langford, W. S. Kolthammer, J. Nunn, and I. A. Walmsley, “High-fidelity polarization storage in a gigahertz bandwidth quantum memory,” J. Phys. B 45, 124008 (2012).
[Crossref]

S. D. Jenkins, T. Zhang, and T. A. B. Kennedy, “Motional dephasing of atomic clock spin waves in an optical lattice,” J. Phys. B 45, 124005 (2012).
[Crossref]

Nat. Comm. (1)

S. Mavadia, V. Frey, J. Sastrawan, S. Dona, and M. J. Biercuk, “Prediction and real-time compensation of qubit decoherence via machine learning,” Nat. Comm. 8, ncomms14106 (2017).
[Crossref]

Nat. Photonics (3)

M. R. Sprague, P. S. Michelberger, T. F. M. Champion, D. G. England, J. Nunn, X.-M. Jin, W. S. Kolthammer, A. Abdolvand, P. S. J. Russell, and I. A. Walmsley, “Broadband single-photon-level memory in a hollow-core photonic crystal fibre,” Nat. Photonics 8, 287–291 (2014).
[Crossref]

K. C. Lee, B. J. Sussman, M. R. Sprague, P. Michelberger, K. F. Reim, J. Nunn, N. K. Langford, P. J. Bustard, D. Jaksch, and I. A. Walmsley, “Macroscopic non-classical states and terahertz quantum processing in room-temperature diamond,” Nat. Photonics 6, 41–44 (2012).
[Crossref]

K. F. Reim, J. Nunn, V. O. Lorenz, B. J. Sussman, K. C. Lee, N. K. Langford, D. Jaksch, and I. A. Walmsley, “Towards high-speed optical quantum memories,” Nat. Photonics 4, 218–221 (2010).
[Crossref]

Nat. Phys. (1)

D. Felinto, C. W. Chou, J. Laurat, E. W. Schomburg, H. de Riedmatten, and H. J. Kimble, “Conditional control of the quantum states of remote atomic memories for quantum networking,” Nat. Phys. 2, 844–848 (2006).
[Crossref]

New J. Phys. (3)

S. A. Moiseev and W. Tittel, “Optical quantum memory with generalized time-reversible atom-light interaction,” New J. Phys. 13, 063035 (2011).
[Crossref]

G. Campbell, M. Hosseini, B. M. Sparkes, P. K. Lam, and B. C. Buchler, “Time- and frequency-domain polariton interference,” New J. Phys. 14, 033022 (2012).
[Crossref]

P. S. Michelberger, T. F. M. Champion, M. R. Sprague, K. T. Kaczmarek, M. Barbieri, X. M. Jin, D. G. England, W. S. Kolthammer, D. J. Saunders, J. Nunn, and I. A. Walmsley, “Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory,” New J. Phys. 17, 043006 (2015).
[Crossref]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rev. A (10)

F. Grosshans and P. Grangier, “Quantum cloning and teleportation criteria for continuous quantum variables,” Phys. Rev. A 64, 010301 (2001).
[Crossref]

M. August and X. Ni, “Using recurrent neural networks to optimize dynamical decoupling for quantum memory,” Phys. Rev. A 95, 012335 (2017).
[Crossref]

N. Sangouard, C. Simon, M. Afzelius, and N. Gisin, “Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening,” Phys. Rev. A 75, 032327 (2007).
[Crossref]

K. Surmacz, J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. Sussman, I. A. Walmsley, and D. Jaksch, “Efficient spatially resolved multimode quantum memory,” Phys. Rev. A 78, 033806 (2008).
[Crossref]

J. J. Longdell, G. Hétet, P. K. Lam, and M. J. Sellars, “Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms,” Phys. Rev. A 78, 032337 (2008).
[Crossref]

A. V. Gorshkov, A. André, M. D. Lukin, and A. S. Sørensen, “Photon storage in Λ-type optically dense atomic media. ii. free-space model,” Phys. Rev. A 76, 033805 (2007).
[Crossref]

J. Nunn, I. A. Walmsley, M. G. Raymer, K. Surmacz, F. C. Waldermann, Z. Wang, and D. Jaksch, “Mapping broadband single-photon wave packets into an atomic memory,” Phys. Rev. A 75, 011401 (2007).
[Crossref]

J.-L. Le Gouët and P. R. Berman, “Raman scheme for adjustable-bandwidth quantum memory,” Phys. Rev. A 80, 012320 (2009).
[Crossref]

M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, “Multimode quantum memory based on atomic frequency combs,” Phys. Rev. A 79, 052329 (2009).
[Crossref]

A. E. Kozhekin, K. Mølmer, and E. Polzik, “Quantum memory for light,” Phys. Rev. A 62, 033809 (2000).
[Crossref]

Phys. Rev. Lett (1)

G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, and M. J. Sellars, “Electro-Optic Quantum Memory for Light Using Two-Level Atoms,” Phys. Rev. Lett 100, 023601 (2008).
[Crossref]

Phys. Rev. Lett. (12)

H.-J. Briegel, W. Dür, J. I. Cirac, and P. Zoller, “Quantum repeaters: The role of imperfect local operations in quantum communication,” Phys. Rev. Lett. 81, 5932–5935 (1998).
[Crossref]

J. Nunn, N. K. Langford, W. S. Kolthammer, T. F. M. Champion, M. R. Sprague, P. S. Michelberger, X.-M. Jin, D. G. England, and I. A. Walmsley, “Enhancing multiphoton rates with quantum memories,” Phys. Rev. Lett. 110, 133601 (2013).
[Crossref] [PubMed]

S. A. Moiseev and S. Kröll, “Complete Reconstruction of the Quantum State of a Single-Photon Wave Packet Absorbed by a Doppler-Broadened Transition,” Phys. Rev. Lett. 87, 173601 (2001).
[Crossref] [PubMed]

K. F. Reim, P. Michelberger, K. C. Lee, J. Nunn, N. K. Langford, and I. A. Walmsley, “Single-Photon-Level Quantum Memory at Room Temperature,” Phys. Rev. Lett. 107, 053603 (2011).
[Crossref] [PubMed]

J. Nunn, K. Reim, K. C. Lee, V. O. Lorenz, B. J. Sussman, I. A. Walmsley, and D. Jaksch, “Multimode memories in atomic ensembles,” Phys. Rev. Lett. 101, 260502 (2008).
[Crossref] [PubMed]

D.-S. Ding, W. Zhang, Z.-Y. Zhou, S. Shi, G.-Y. Xiang, X.-S. Wang, Y.-K. Jiang, B.-S. Shi, and G.-C. Guo, “Quantum storage of orbital angular momentum entanglement in an atomic ensemble,” Phys. Rev. Lett. 114, 050502 (2015).
[Crossref] [PubMed]

P. J. Bustard, R. Lausten, D. G. England, and B. J. Sussman, “Toward quantum processing in molecules: A THz-bandwidth coherent memory for light,” Phys. Rev. Lett. 111, 083901 (2013).
[Crossref] [PubMed]

W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, “High densities of cold atoms in a dark spontaneous-force optical trap,” Phys. Rev. Lett. 70, 2253–2256 (1993).
[Crossref] [PubMed]

D. J. Saunders, J. H. D. Munns, T. F. M. Champion, C. Qiu, K. T. Kaczmarek, E. Poem, P. M. Ledingham, I. A. Walmsley, and J. Nunn, “Cavity-enhanced room-temperature broadband raman memory,” Phys. Rev. Lett. 116, 090501 (2016).
[Crossref] [PubMed]

K. F. Reim, J. Nunn, X.-M. Jin, P. S. Michelberger, T. F. M. Champion, D. G. England, K. C. Lee, W. S. Kolthammer, N. K. Langford, and I. A. Walmsley, “Multipulse Addressing of a Raman Quantum Memory: Configurable Beam Splitting and Efficient Readout,” Phys. Rev. Lett. 108, 263602 (2012).
[Crossref] [PubMed]

A. Datta, L. Zhang, J. Nunn, N. K. Langford, A. Feito, M. B. Plenio, and I. A. Walmsley, “Compact Continuous-Variable Entanglement Distillation,” Phys. Rev. Lett. 108, 060502 (2012).
[Crossref] [PubMed]

D. A. Braje, V. Balić, S. Goda, G. Y. Yin, and S. E. Harris, “Frequency mixing using electromagnetically induced transparency in cold atoms,” Phys. Rev. Lett. 93, 183601 (2004).
[Crossref] [PubMed]

Rev. Mod. Phys. (1)

N. Sangouard, C. Simon, H. de Riedmatten, and N. Gisin, “Quantum repeaters based on atomic ensembles and linear optics,” Rev. Mod. Phys. 83, 33–80 (2011).
[Crossref]

Sci. Rep. (1)

P. B. Wigley, P. J. Everitt, A. v. d. Hengel, J. W. Bastian, M. A. Sooriyabandara, G. D. McDonald, K. S. Hardman, C. D. Quinlivan, P. Manju, C. C. N. Kuhn, I. R. Petersen, A. N. Luiten, J. J. Hope, N. P. Robins, and M. R. Hush, “Fast machine-learning online optimization of ultra-cold-atom experiments,” Sci. Rep. 6, srep25890 (2016).
[Crossref]

Sic. Rep. (1)

O. Pinel, J. L. Everett, M. Hosseini, G. T. Campbell, B. C. Buchler, and P. K. Lam, “A mirrorless spinwave resonator,” Sic. Rep. 5, srep17633 (2015).
[Crossref]

Other (1)

M. Hush, “M-loop: Machine-learning online optimization package,” (2016).

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Figures (5)

Fig. 1
Fig. 1 The atomic level configuration. Trapping is performed with light that is red-detuned from the |5S1/2, F = 2〉 → |5S3/2, F′ = 3〉 transition and a repump is applied on the |5S1/2, F = 1〉 → |5S3/2, F′ = 2〉 transition. After trapping and compression of the ensemble, a σ+-polarized optical pumping beam is applied to the |5S1/2, F = 1〉 → |5S3/2, F′ = 3〉 transition in conjunction with the repump to populate the |5S1/2, F = 2, mf = +2〉 state. Inset: Left: A signal + traverses an elongated atomic cloud where a two-photon resonant control beam Ω+ converts it to a collective atomic excitation. Right: A backward-propagating control beam Ω subsequently retrieves the signal in the backward direction, as .
Fig. 2
Fig. 2 The atomic preparation sequence. The compression and polarisation-gradient cooling sequences are divided into 20 and 5 time bins, respectively, and are passed onto a machine-learning algorithm. This algorithm determines the optimal values of repump and cooling beam frequencies, and current through the transverse coils for magnetic trapping. A typical optimised set of parameters is presented here.
Fig. 3
Fig. 3 The signal + traverses the atomic cloud where a two-photon resonant control beam Ω+ converts it to a collective atomic excitation. A reference without atoms or the fraction which is not absorbed is monitored on the right-hand detector. A backward-propagating control Ω subsequently retrieves the signal in the backward direction, as + which is sent to the left-hand detector.
Fig. 4
Fig. 4 a) Decay of the memory efficiency with storage time. The error bars correspond to the standard deviation. The efficiency is fitted to a motional dephasing model with an initial efficiency η0 = (69 ± 6)% and diffusion and transit times τD = 110 μs and τT = 170 μs, respectively. b) Storage and recall of a 360 ns 1/e2-width pulse. Photodiode signal for reference (scaled down) and recalls at storage times t1 = 1.5 μs and t2 = 41 μs are shown. The characteristic decay time corresponds to a delay-bandwidth product of 160.
Fig. 5
Fig. 5 Schematic of an equivalent beam-splitter array. The input light is partially converted to a spin-wave and the rest leaks through the atomic ensemble and is detected on the photodiode. It is estimated about 35% of the light that is absorbed is not mode-matched to be efficiently recalled, in this short-pulse configuration. At the given control beam intensity, each retrieval pulse extracts only about 60 ± 4% of the stored spin-wave, the remainder is left for a subsequent retrieval step. The memory decay between retrievals is ignored at this time scale.

Equations (1)

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η ( t ) = η 0 ( 1 + ( t / τ D ) 2 ) 2 exp [ ( t / τ T ) 2 1 + ( t / τ D ) 2 ]

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