Quantum key distribution using gaussian-modulated coherent states

Nature

Volumn 421, Issue 6920, 2003, Pages 238-241

  Grosshans, Frédéric ^a   Van Asschet, Gilles ^b   Wenger, Jéröme ^a   Brouri, Rosa ^a   Cerf, Nicolas J ^b   Grangier, Philippe ^a  

^a UNIV PARIS SUD   (France)

^b UNIVERSITÉ LIBRE DE BRUXELLES   (Belgium)

Author keywords

[No Author keywords available]

Indexed keywords

INFORMATION THEORY; LASER PULSES; PHOTONS;

QUANTUM KEY DISTRIBUTION;

QUANTUM THEORY;

PHYSICS;

ARTICLE; COMPUTER PROGRAM; INFORMATION PROCESSING; LASER; PHOTON; PRIORITY JOURNAL; QUANTUM MECHANICS;

EID: 0037448569     PISSN: 00280836     EISSN: None     Source Type: Journal    
DOI: 10.1038/nature01289     Document Type: Article

References (30)

1. Braunstein, S. L. & Pati, A. K. Quantum Information Theory with Continuous Variables (Kluwer Academic, Dordrecht, in the press).
2. Hillery, M, Quantum cryptography with squeezed states. Phys. Rev. A 61, 022309 (2000).
3. Ralph, T. C. Continuous variable quantum cryptography. Phys. Rev. A 61, 010303(R) (2000).
4. Ralph, T. C. Security of continuous-variable quantum cryptography. Phys Rev. A 62, 062306 (2000).
5. Reid, M. D. Quantum cryptography with a predetermined key, using continuous-variable Einstein-Podolsky-Rosell correlations. Phys. Rev. A 62, 062308 (2000).
6. Gottesman, D. & Preskill, J. Secure quantum key distribution using squeezed states. Phys. Rev. A 63, 022309 (2001).
7. Cerf, N. J., Lévy, M. & Van Assche, G. Quantum distribution of Gaussian keys using squeezed states. Phys. Rev. A 63, 052311 (2001).
8. Van Assche, G., Cardinal, J. & Cerf, N. J. Reconciliation of a quantum-distributed Gaussian key. Preprint cs. CR/0107030 at (http://arxiv.org) (2001).
9. Bencheikh, K., Symul, Th., Jankovic, A. & Levenson, J. A. Quantum kev distribution with continuous variables. J. Mod. Opt. 48, 1903-1920 (2001).
10. Cerf, N. J., Iblisdir, S. & Van Assche, G. Cloning and cryptography with quantum continuous variables. Eur. Phys. J. D 18, 211-218 (2002).
11. Si[berhorn Ch., Korotkova, N. & Leuchs, G. Quantum key distribution with bright entangled beams. Phys. Rev. Lett. 88, 167902 (2002).
12. Silberhorn, Ch., Ralph, T. C., Lütkenhaus, N. & Leuchs, G. Continuous variable quantum cryptography beating the 3 dB loss limit. Phys. Rev. Lett. 89, 167901 (2002).
13. Grosshans, E & Grangier, Ph. Continuous variable quantum cryptography using coherent states. Phys. Rev. Lett. 88, 057902 (2002).
14. Grosshans, F. & Grangier, Ph. Reverse reconciliation protocols for quantum cryptography with continuous variables. Preprint quant-ph/0204127 at (http:/arxiv. org) (2002).
15. Gisin, N., Ribordy, G., Tittel, W. & Zbinden, H. Quantum cryptography. Rev. Mod. Phys. 74, 145-195 (2002).
16. Cerf, N. J., Ipe, A. & Rottenberg, X. Cloning of continuous variables. Phys. Rev. Lett. 85, 1754-1757 (2000).
17. Cerf, N. J. & Iblisdir, S. Optimal N-to-M cloning of conjugate quantum variables. Phys. Rev. A 62, 040301(R) (2000).
18. Grosshans, F. & Grangier, Ph. Quantum cloning and teleportation criteria for continuous quantum variables. Phys. Rev. A 64, 010301(R) (2001).
19. Bennett, C.-H. Quantum cryptography using any two nonorthogonal states. Phys Rev. Lett. 68, 3121-3124 (1992).
20. Duan, L.-M., Giedke, G., Cirac, J. L. & Zoller, P. Entanglement purification of gaussian continuous variable quantum states. Phys. Rev. Lett. 84, 4002-4005 (2000).
21. Csiszár, L & Körner, J. Broadcast channel with confidential messages. IEEE Trans. Inform. Theory 24, 339-348 (1978).
22. Maurer, U. M. Secret key agreement by public discussion from common information. IEEE Trans. Inform. Theory 39, 733-742 (1993).
23. Poizat, J.-Ph., Roch, J.-F. & Grangier, Ph. Characterization of quantum non-demolition measurements in optics. Ann. Phys. (Paris) 19, 265-297 (1994).
24. Grangier, Ph., Levenson, J. A. & Poizat, J.-Ph. Quantum non-demolition measurements in optics. Nature 396, 537-542 (1998).
25. Shannon, C. E.A mathematical theory of communication. Bell Syst. Tech. J. 27, 623-656 (1948).
26. Buttler, W. T., Lamoreaux, S. K., Torgerson, J. R., Nickel, G. H. & Peterson, C. G. Fast, efficient error reconciliation for quantum cryptography. Preprint quant-ph/0203096 at (http://arxiv.org) (2002).
27. Brassard, G. & Salvail, L. Advances in Cryptology - Eurocrypt'93 Lecture Notes in Computer Science (ed. Helleseth, T.) 411-423 (Springer, New York, 1993).
28. Nguyen, K. Extension des Protocoles de Réconciliation Cryptographie Quantique Thesis, Univ. Libre de Bruxelles (2002).
29. Lo, H.-K. Method for decoupling error correction from privacy amplification. Preprint quant-ph/0201030 at (http://arxiv. org) (2002)
30. Bennett, C. H., Brassard, G., Crépeau, C. & Maurer, U. M. Generalized privacy amplification. IEEE Trans. Inform. Theory 41, 1915-1935 (1995).