Abstract

We experimentally demonstrate transporting continuous quantum variables of individual light pulses at telecommunication wavelengths by using continuous-variable Bell measurements and post-processing displacement techniques. Time-domain pulsed homodyne detectors are used in the Bell measurements and the quantum variables of input light are transported pulse-by-pulse. Fidelity of F = 0.57 ± 0.03 is experimentally achieved with the aid of entanglement, which is higher than the bound (Fc = 0.5) of the classical case in the absence of entanglement.

© 2011 Optical Society of America

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  1. L. Vaidman, "Teleportation of quantum states," Phys. Rev. A 49, 1473-1476 (1994).
    [CrossRef] [PubMed]
  2. S. L. Braunstein, and H. J. Kimble, "Teleportation of Continuous Quantum Variables," Phys. Rev. Lett. 80, 869-872 (1998).
    [CrossRef]
  3. C. H. Bennett, and S. J. Wiesner, "Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states," Phys. Rev. Lett. 69, 2881-2884 (1992).
    [CrossRef] [PubMed]
  4. S. L. Braunstein, and H. J. Kimble, "Dense coding for continuous variables," Phys. Rev. A 61, 042302 (2000).
    [CrossRef]
  5. A. K. Ekert, "Quantum cryptography based on Bell’s theorem," Phys. Rev. Lett. 67, 661-663 (1991).
    [CrossRef] [PubMed]
  6. A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
    [CrossRef] [PubMed]
  7. W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
    [CrossRef]
  8. T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
    [CrossRef]
  9. X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
    [CrossRef] [PubMed]
  10. J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
    [CrossRef]
  11. H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
    [CrossRef]
  12. R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
    [CrossRef] [PubMed]
  13. Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
    [CrossRef]
  14. D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
    [CrossRef] [PubMed]
  15. P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
    [CrossRef]
  16. D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
    [CrossRef]
  17. Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
    [CrossRef] [PubMed]
  18. Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
    [CrossRef]
  19. Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
    [CrossRef] [PubMed]
  20. L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
    [CrossRef] [PubMed]
  21. R. Simon, "Peres-Horodecki Separability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2726-2729 (2000).
    [CrossRef] [PubMed]
  22. S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
    [CrossRef]

2009 (1)

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

2008 (1)

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

2007 (1)

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

2006 (2)

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

2005 (1)

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

2003 (2)

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

2002 (2)

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
[CrossRef] [PubMed]

2001 (1)

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

2000 (4)

P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
[CrossRef]

S. L. Braunstein, and H. J. Kimble, "Dense coding for continuous variables," Phys. Rev. A 61, 042302 (2000).
[CrossRef]

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

R. Simon, "Peres-Horodecki Separability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2726-2729 (2000).
[CrossRef] [PubMed]

1998 (2)

S. L. Braunstein, and H. J. Kimble, "Teleportation of Continuous Quantum Variables," Phys. Rev. Lett. 80, 869-872 (1998).
[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

1997 (1)

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

1994 (1)

L. Vaidman, "Teleportation of quantum states," Phys. Rev. A 49, 1473-1476 (1994).
[CrossRef] [PubMed]

1993 (1)

D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
[CrossRef] [PubMed]

1992 (1)

C. H. Bennett, and S. J. Wiesner, "Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states," Phys. Rev. Lett. 69, 2881-2884 (1992).
[CrossRef] [PubMed]

1991 (1)

A. K. Ekert, "Quantum cryptography based on Bell’s theorem," Phys. Rev. Lett. 67, 661-663 (1991).
[CrossRef] [PubMed]

Aichele, T.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Bachor, H.-A.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Beck, M.

D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
[CrossRef] [PubMed]

Bennett, C. H.

C. H. Bennett, and S. J. Wiesner, "Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states," Phys. Rev. Lett. 69, 2881-2884 (1992).
[CrossRef] [PubMed]

Bouwmeester, D.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Bowen, W. P.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Braunstein, S. L.

S. L. Braunstein, and H. J. Kimble, "Dense coding for continuous variables," Phys. Rev. A 61, 042302 (2000).
[CrossRef]

P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
[CrossRef]

S. L. Braunstein, and H. J. Kimble, "Teleportation of Continuous Quantum Variables," Phys. Rev. Lett. 80, 869-872 (1998).
[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Buchler, B. C.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Chou, C. W.

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

Cirac, J. I.

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

Duan, L.-M.

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

Eibl, M.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Ekert, A. K.

A. K. Ekert, "Quantum cryptography based on Bell’s theorem," Phys. Rev. Lett. 67, 661-663 (1991).
[CrossRef] [PubMed]

Eto, Y.

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

Fuchs, C. A.

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Furusawa, A.

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Giedke, G.

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

Goh, K. W.

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

Hansen, H.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Hettich, C.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Hirano, M.

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

Hirano, T.

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

Jing, J.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Kannari, F.

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

Kimble, H. J.

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

S. L. Braunstein, and H. J. Kimble, "Dense coding for continuous variables," Phys. Rev. A 61, 042302 (2000).
[CrossRef]

P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
[CrossRef]

S. L. Braunstein, and H. J. Kimble, "Teleportation of Continuous Quantum Variables," Phys. Rev. Lett. 80, 869-872 (1998).
[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Korolkova, N.

Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
[CrossRef] [PubMed]

Lam, P. K.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Leuchs, G.

Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
[CrossRef] [PubMed]

Li, X.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Lodahl, P.

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Lvovsky, A. I.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Mattle, K.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Mizuno, J.

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

Mlynek, J.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Nonaka, A.

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

Okubo, R.

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

Pan, J.-W.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Pan, Q.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Peng, K.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Polzik, E. S.

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Ralph, T. C.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Raymer, M. G.

D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
[CrossRef] [PubMed]

Sasaki, M.

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

Schiller, S.

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

Schnabel, R.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Silberhorn, Ch.

Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
[CrossRef] [PubMed]

Simon, R.

R. Simon, "Peres-Horodecki Separability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2726-2729 (2000).
[CrossRef] [PubMed]

Smithey, D. T.

D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
[CrossRef] [PubMed]

Sørensen, J. L.

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

Suzuki, S.

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

Symul, T.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Tajima, T.

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

Treps, N.

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

Vaidman, L.

L. Vaidman, "Teleportation of quantum states," Phys. Rev. A 49, 1473-1476 (1994).
[CrossRef] [PubMed]

van Loock, P.

P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
[CrossRef]

Wakui, K.

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

Weinfurter, H.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Wiesner, S. J.

C. H. Bennett, and S. J. Wiesner, "Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states," Phys. Rev. Lett. 69, 2881-2884 (1992).
[CrossRef] [PubMed]

Xie, C.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Yonezawa, H.

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

Zeilinger, A.

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Zhang, J.

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

Zhang, T. C.

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

Zhang, Y.

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

Zoller, P.

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

Appl. Phys. Lett. (1)

S. Suzuki, H. Yonezawa, F. Kannari, M. Sasaki, and A. Furusawa, "7 dB quadrature squeezing at 860 nm with periodically poled KTiOPO4," Appl. Phys. Lett. 89, 061116 (2006).
[CrossRef]

Jpn. J. Appl. Phys. (1)

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Pulsed Homodyne Detection of Squeezed Light at Telecommunication Wavelength," Jpn. J. Appl. Phys. 45(Part 2), L821-L823 (2006).
[CrossRef]

Nature (1)

D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, "Experimental Quantum Teleportation," Nature 390, 575-579 (1997).
[CrossRef]

Opt. Lett. (3)

Y. Eto, T. Tajima, Y. Zhang, and T. Hirano, "Observation of squeezed light at 1.535 μm using a pulsed homodyne detector," Opt. Lett. 32, 1698-1700 (2007).
[CrossRef] [PubMed]

H. Hansen, T. Aichele, C. Hettich, P. Lodahl, A. I. Lvovsky, J. Mlynek, and S. Schiller, "Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements," Opt. Lett. 26, 1714-1716 (2001).
[CrossRef]

R. Okubo, M. Hirano, Y. Zhang, and T. Hirano, "Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz," Opt. Lett. 33, 1458-1460 (2008).
[CrossRef] [PubMed]

Phys. Rev. A (7)

Y. Eto, A. Nonaka, Y. Zhang, and T. Hirano, "Stable generation of quadrature entanglement using a ring interferometer," Phys. Rev. A 79, 050302 (2009).
[CrossRef]

L. Vaidman, "Teleportation of quantum states," Phys. Rev. A 49, 1473-1476 (1994).
[CrossRef] [PubMed]

S. L. Braunstein, and H. J. Kimble, "Dense coding for continuous variables," Phys. Rev. A 61, 042302 (2000).
[CrossRef]

W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H.-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003).
[CrossRef]

T. C. Zhang, K. W. Goh, C. W. Chou, P. Lodahl, and H. J. Kimble, "Quantum teleportation of light beams," Phys. Rev. A 67, 033802 (2003).
[CrossRef]

J. Mizuno, K. Wakui, A. Furusawa, and M. Sasaki, "Experimental demonstration of entanglement-assisted coding using a two-mode squeezed vacuum state," Phys. Rev. A 71, 012304 (2005).
[CrossRef]

P. van Loock, S. L. Braunstein, and H. J. Kimble, "Broadband teleportation," Phys. Rev. A 62, 022309 (2000).
[CrossRef]

Phys. Rev. Lett. (8)

X. Li, Q. Pan, J. Jing, J. Zhang, C. Xie, and K. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002).
[CrossRef] [PubMed]

L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722-2725 (2000).
[CrossRef] [PubMed]

R. Simon, "Peres-Horodecki Separability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2726-2729 (2000).
[CrossRef] [PubMed]

A. K. Ekert, "Quantum cryptography based on Bell’s theorem," Phys. Rev. Lett. 67, 661-663 (1991).
[CrossRef] [PubMed]

S. L. Braunstein, and H. J. Kimble, "Teleportation of Continuous Quantum Variables," Phys. Rev. Lett. 80, 869-872 (1998).
[CrossRef]

C. H. Bennett, and S. J. Wiesner, "Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states," Phys. Rev. Lett. 69, 2881-2884 (1992).
[CrossRef] [PubMed]

D. T. Smithey, M. Beck, and M. G. Raymer, "Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuum," Phys. Rev. Lett. 70, 1244-1247 (1993).
[CrossRef] [PubMed]

Ch. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum Key Distribution with Bright Entangled Beams," Phys. Rev. Lett. 88, 167902 (2002).
[CrossRef] [PubMed]

Science (1)

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998).
[CrossRef] [PubMed]

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Figures (4)

Fig. 1
Fig. 1

Transportation of continuous quantum variables.

Fig. 2
Fig. 2

Schematic of experimental apparatus. Blue solid line and red dotted line correspond to light beams at wavelengths of 1.535 μm and 767 nm. Blue dashed line indicates the propagation of two squeezed beams and entanglement.

Fig. 3
Fig. 3

Measured correlation properties between xu or pv and Xb(ϕb). (a) Blue squares indicate 〈Δ2[xu + Xb(ϕb)]〉 and red circles indicate 〈Δ2[xuXb(ϕb)]〉. (b) Blue squares indicate 〈 Δ2[pv + Xb(ϕb)]〉 and red circles indicate 〈Δ2[pvXb(ϕb)]〉.

Fig. 4
Fig. 4

Noise variances of Xout(ϕb) with (blue squares) and without (red circles) entanglement.

Equations (5)

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

x ^ a x ^ b = 2 e r 2 x ^ 2 ,
p ^ a + p ^ b = 2 e r 1 p ^ 1 .
X ^ b ( ϕ b ) = ( x ^ in 2 e r 2 x ^ 2 2 x u ) cos ϕ b + ( p ^ in + 2 e r 1 p ^ 1 2 p v ) sin ϕ b
X out ( ϕ b ) = X b ( ϕ b ) + 2 ( x u cos ϕ b + p v sin ϕ b ) .
F eff = 1 / ( 1 + e 2 r eff ) ,

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