Demonstrating superior discrimination of locally prepared states using nonlocal measurements

Physical Review Letters

Volumn 94, Issue 22, 2005, Pages

  Pryde, G J ^a   O'Brien, J L ^a   White, A G ^a   Bartlett, Stephen D ^b  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b UNIVERSITY OF SYDNEY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

NONLOCAL MEASUREMENTS; PAYOFF FUNCTION;

GROUND STATE; QUANTUM THEORY;

OPTICAL COMMUNICATION;

EID: 27744574976     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.94.220406     Document Type: Article

References (30)

1. J.S. Bell, Physics (Long Island City, N.Y.) PYCSAP 0554-128X 1, 195 (1964).
2. A. Aspect, J. Dalibard, and G. Roger, Phys. Rev. Lett. 49, 1804 (1982); PRLTAO 0031-9007 10.1103/PhysRevLett.49.1804
3. P.G. Kwiat, E. Waks, A.G. White, I. Appelbaum, and P.H. Eberhard, Phys. Rev. A PLRAAN 1050-2947 60, R773 (1999). 10.1103/PhysRevA.60.R773
4. C.H. Bennett, G. Brassard, C. Crepeau, R. Josza, A. Peres, and W.K. Wootters, Phys. Rev. Lett. 70, 1895 (1993). PRLTAO 0031-9007 10.1103/PhysRevLett.70.1895
5. C.H. Bennett and S.J. Wiesner, Phys. Rev. Lett. 69, 2881 (1992). PRLTAO 0031-9007 10.1103/PhysRevLett.69.2881
6. A. Peres and W.K. Wootters, Phys. Rev. Lett. 66, 1119 (1991). PRLTAO 0031-9007 10.1103/PhysRevLett.66.1119
7. C.H. Bennett, D.P. DiVincenzo, C.A. Fuchs, T. Mor, E. Rains, P.W. Shor, J.A. Smolin, and W.K. Wootters, Phys. Rev. A PLRAAN 1050-2947 59, 1070 (1999). 10.1103/PhysRevA.59.1070
8. As discussed by Bennett, who developed the name, the phenomenon of nonlocality without entanglement can be explained using a local hidden variables theory. However, they point out that the measured quantities ("unhidden variables") are still nonlocal; measurement of the whole can reveal more about the system's state than local measurements.
9. A.S. Kholevo, Probl. Inf. Transm. PRITA9 0032-9460 15, 247 (1979).
10. P. Hausladen, R. Jozsa, B. Schumacher, M. Westmoreland, and W.K. Wootters, Phys. Rev. A PLRAAN 1050-2947 54, 1869 (1996). 10.1103/PhysRevA.54. 1869
11. B. Schumacher and M.D. Westmoreland, Phys. Rev. A PLRAAN 1050-2947 56, 131 (1997). 10.1103/PhysRevA.56.131
12. A.S. Holevo, IEEE Trans. Inf. Theory 44, 269 (1998). IETTAW 0018-9448 10.1109/18.651037
13. K. Banaszek, A. Dragan, W. Wasilewski, and C. Radzewicz, Phys. Rev. Lett. 92, 257901 (2004). PRLTAO 0031-9007 10.1103/PhysRevLett.92.257901
14. M. Fujiwara, M. Takeoka, J. Mizuno, and M. Sasaki, Phys. Rev. Lett. 90, 167906 (2003). PRLTAO 0031-9007 10.1103/PhysRevLett.90.167906
15. S. Massar and S. Popescu, Phys. Rev. Lett. 74, 1259 (1995). PRLTAO 0031-9007 10.1103/PhysRevLett.74.1259
16. R. Filip, Phys. Rev. A PLRAAN 1050-2947 65, 062320 (2002). 10.1103/PhysRevA.65.062320
17. S.D. Bartlett, T. Rudolph, and R.W. Spekkens, Phys. Rev. A PLRAAN 1050-2947 70, 032321 (2004). 10.1103/PhysRevA.70.032321
18. M.A. Nielsen and I.L. Chuang, Quantum Computation and Quantum Information (Cambridge University Press, Cambridge, England, 2000).
19. R.F. Werner, Phys. Rev. A PLRAAN 1050-2947 40, 4277 (1989). 10.1103/PhysRevA.40.4277
20. Hendrych, demonstrating a measurement of state overlap for two photons, measured identical/orthogonal polarizations as the first photon was varied from |V to |H through |D. As this distribution is not uniform on S, there exists a local measurement with an expected payoff of P′̄local=3/4, equal to that of the partial Bell measurement.
21. J.L. O'Brien, G.J. Pryde, A.G. White, T.C. Ralph, and D. Branning, Nature (London) NATUAS 0028-0836 426, 264 (2003); 10.1038/nature02054
22. J.L. O'Brien, G.J. Pryde, A. Gilchrist, D.F.V. James, N.K. Langford, T.C. Ralph, and A.G. White, Phys. Rev. Lett. 93, 080502 (2004). PRLTAO 0031-9007 10.1103/PhysRevLett.93.080502
23. S.L. Braunstein and A. Mann, Phys. Rev. A PLRAAN 1050-2947 51, R1727 (1995). 10.1103/PhysRevA.51.R1727
24. D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, Nature (London) NATUAS 0028-0836 390, 575 (1997). 10.1038/37539
25. M. Hendrych, M. Duoek, R. Filip, and J. Fiuráek, Phys. Lett. A 310, 95 (2003). PYLAAG 0375-9601 10.1016/S0375-9601(03)00262-7
26. J. Walgate, Phys. Rev. Lett. 85, 4972 (2000). PRLTAO 0031-9007 10.1103/PhysRevLett.85.4972
27. D. Brody and B. Meister, Phys. Rev. Lett. 76, 1 (1996); PRLTAO 0031-9007 10.1103/PhysRevLett.76.1
28. A. Acín, Phys. Rev. A PLRAAN 1050-2947 71, 032338 (2005). 10.1103/PhysRevA.71.032338
29. S. Takeuchi, Opt. Lett. 26, 843 (2001). OPLEDP 0146-9592
30. C. Kurtsiefer, M. Oberparleiter, and H. Weinfurter, J. Mod. Opt. 48, 1997 (2001). JMOPEW 0950-0340 10.1080/09500340110060100