Robustness of bipartite Gaussian entangled beams propagating in lossy channels

Nature Photonics

Volumn 4, Issue 12, 2010, Pages 858-861

  Barbosa, F A S ^a   Coelho, A S ^a   De Faria, A J ^a   Cassemiro, K N ^b   Villar, A S ^b,c   Nussenzveig, P ^a   Martinelli, M ^a  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

^b MAX PLANCK INSTITUTE FOR THE SCIENCE OF LIGHT   (Germany)

^c UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CLASSICAL COMMUNICATION; CRYPTOGRAPHIC KEY; DECOHERENCE; FUTURE APPLICATIONS; LOSSY CHANNEL; OF QUANTUM-INFORMATION; QUANTUM PROPERTIES; QUANTUM RESOURCES;

GAUSSIAN BEAMS; OPTICAL COMMUNICATION; QUANTUM OPTICS;

QUANTUM ENTANGLEMENT;

EID: 78649860762     PISSN: 17494885     EISSN: 17494893     Source Type: Journal    
DOI: 10.1038/nphoton.2010.222     Document Type: Article

References (21)

1. Scarani, V. et al. The security of practical quantum key distribution. Rev. Mod. Phys. 81, 1301-1350 (2008).
2. Furusawa A. et al. Unconditional quantum teleportation. Science 282, 706-709 (1998).
3. Kimble, H. J. The quantum internet. Nature 453, 1023-1030 (2008).
4. Ralph, T. C. & Lam, P. K. A bright future for quantum communications. Nature Photon. 3, 671-673 (2009).
5. Yu, T. & Eberly, J. H. Sudden death of entanglement. Science 323, 598-601 (2009).
6. Almeida, M. P. et al. Environment-induced sudden death of entanglement. Science 316, 579-582 (2007).
7. Yu, T. & Eberly, J. H. Quantum open system theory: bipartite aspects. Phys. Rev. Lett. 97, 140403 (2006).
8. Coelho, A. S. et al. Three-color entanglement, Science 326, 823-826 (2009).
9. Einstein, A., Podolsky, B. & Rosen, N. Can quantum-mechanical description of physical reality be considered complete? Phys. Rev. 47, 777-780 (1935).
10. Schrödinger, E. Discussion of probability relations between separated systems. Proc. Camb. Philos. Soc. 31, 555-563 (1935).
11. Bachor, H. A. & Ralph, T. C. A Guide to Experiments in Quantum Optics 2nd edn (Wiley-VCH, 2004).
12. Reid, M. D. & Drummond, P. D. Quantum correlations of phase in nondegenerate parametric oscillation. Phys. Rev. Lett. 60, 2731-2733 (1988).
13. Villar, A. S., Cruz, L. S., Cassemiro, K. N., Martinelli, M. & Nussenzveig, P. Generation of bright two-color continuous variable entanglement. Phys. Rev. Lett. 95, 243603 (2005).
14. César, J. E. S. et al. Extra phase noise from thermal fluctuations in nonlinear optical crystals. Phys. Rev. A 79, 063816 (2009)
15. Duan, L. M., Giedke, G., Cirac, J. I. & Zoller, P. Inseparability criterion for continuous variable systems. Phys. Rev. Lett. 84, 2722-2725 (2000).
16. Bowen, W. P., Schnabel, R., Lam, P. K. & Ralph, T. C. Experimental investigation of criteria for continuous variable entanglement. Phys. Rev. Lett. 90, 043601 (2003).
17. Eisert, J., Scheel, S. & Plenio, M. B. Distilling Gaussian states with Gaussian operations is impossible. Phys. Rev. Lett. 89, 137903 (2002).
18. Giedke, G. & Cirac, J. I. Characterization of Gaussian operations and distillation of Gaussian states. Phys. Rev. A 66, 032316 (2002).
19. Barbosa, F. A. S. et al. Early stage disentanglement in bipartite continuousvariable systems. Preprint at http://arXiv:1009.4255v1 (2010).
20. Simon, R. Peres-Horodecki separability criterion for continuous variable systems. Phys. Rev. Lett. 84, 2726-2729 (2000).
21. Villar, A. S. et al. Entanglement in the above-threshold optical parametric oscillator. J. Opt. Soc. Am. B 24, 249-256 (2007).