Quantum State of a Propagating Laser Field

Quantum Information and Computation

Volumn 2, Issue 2, 2002, Pages 151-165

  Van Enk, S J ^a   Fuchs, Christopher A ^a  

^a LUCENT TECHNOLOGIES   (United States)

Author keywords

Coherent state; Laser field; Phase measurement; Quantum teleportation

Indexed keywords

CONTINUOUS WAVE LASERS; INFORMATION THEORY; OPTICAL COMMUNICATION; PHASE MEASUREMENT; QUANTUM COMMUNICATION;

COHERENT STATE; CONTINUOUS VARIABLES; CONVENTIONAL LASERS; LASER FIELDS; OPTICAL EXPERIMENTS; OPTICAL IMPLEMENTATIONS; QUANTUM INFORMATION; QUANTUM TELEPORTATION;

QUANTUM ENTANGLEMENT;

EID: 0041572641     PISSN: 15337146     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (27)

1. M. Sargent, M. O. Scully, and W. E. Lamb, Laser Physics, Addison-Wesley, Reading (1974).
2. D. F. Walls and G. J. Milburn, Quantum Optics, Springer-Verlag, Berlin 1994.
3. C. M. Caves and C. A. Fuchs, "Quantum Information: How Much Information in a State Vector?," in The Dilemma of Einstein, Podolsky and Rosen - 60 Years Later, edited by A. Mann and M. Revzen [Ann. Isr. Phys. Soc. 12, 226 (1996).
4. C. M. Caves and C. A. Fuchs, "Quantum Information: How Much Information in a State Vector?," in The Dilemma of Einstein, Podolsky and Rosen - 60 Years Later, edited by A. Mann and M. Revzen [Ann. Isr. Phys. Soc. 12, 226 (1996).
5. S. L. Braunstein, C. M. Caves, R. Jozsa, N. Linden, S. Popescu, and R. Schack, Phys. Rev. Lett. 83, 1054 (1999).
6. P. Kok and S. L. Braunstein, Phys. Rev. A 61, 042304 (2000).
7. K. Mølmer, Phys. Rev. A 55, 3195 (1997); J. Mod. Optics 44, 1937 (1997).
8. K. Mølmer, Phys. Rev. A 55, 3195 (1997); J. Mod. Optics 44, 1937 (1997).
9. T. Rudolph and B. C. Sanders, Phys. Rev. Lett. 87, 077903 (2001).
10. M. J. Collett and C. W. Gardiner, Phys. Rev. A 30, 1386 (1984).
11. R. L. Hudson and G. R. Moody, Z. Wahrs. 33, 343 (1976).
12. C. M. Caves, C. A. Fuchs, and R. Schack, quant-ph/0104088.
13. W. Vogel and D.-G. Welsch, Lectures on Quantum Optics, (Akademie verlag GmbH, Berlin, 1994), Chapter 8.
14. K. J. Blow, R. Loudon, S. J. D. Phoenix, and T. J. Shepherd, Phys. Rev. A 42, 4102 (1990).
15. R. Schack, T. A. Brun, and C. M. Caves, Phys. Rev. A 64, 6401305 (2001).
16. P. D. Drummond and M. D. Reid, Phys. Rev. A 37, 1806 (1988).
17. S. J. van Enk and H. J. Kimble, Quantum Information and Computation (QIC) 2 (1), 1 (2002).
18. i(t)}. The two temporal modes thus defined are then, to a good approximation, the only two nonempty modes. One finds, as before, a fixed phase relationship between the two states. See [15] for more details.
19. It is noteworthy that a very different approach based on so-called robust unravelings of Master equations describing open quantum systems also indicates a privileged role for the coherent states, namely that of the pure states that remain closest to pure during evolution. See, for example, J. Gea-Banacloche, Found. Phys. 28, 531 (1998); H. M. Wiseman, Phys. Rev. A 47, 5180 (1993).
20. It is noteworthy that a very different approach based on so-called robust unravelings of Master equations describing open quantum systems also indicates a privileged role for the coherent states, namely that of the pure states that remain closest to pure during evolution. See, for example, J. Gea-Banacloche, Found. Phys. 28, 531 (1998); H. M. Wiseman, Phys. Rev. A 47, 5180 (1993).
21. D. J. Jones, S. A. Diddams, J. K. Ranka, A. Stentz, R. S. Windeler, J. L. Hall, and S. T. Cundiff, Science 288, 635 (2000).
22. J. Gea-Banacloche, private communication.
23. A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, Science 282, 706 (1998).
24. C. H. Bennett, D. P. DiVincenzo, J. A. Smolin, and W. K. Wootters, Phys. Rev. A 54, 3824 (1996).
25. S. J. van Enk, J. Mod. Optics 48, 2049 (2001).
26. H. M. Wiseman, quant-ph/0104004.
27. M. D. Reid, Phys. Rev. Lett. 84, 2765 (2000) and references therein.