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Chin. Phys. B, 2015, Vol. 24(8): 084203    DOI: 10.1088/1674-1056/24/8/084203
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Strong violations of locality by testing Bell's inequality with improved entangled-photon systems

Wang Yaoa, Fan Dai-Hea, Guo Wei-Jiea, Wei Lian-Fua b
a Quantum Optoelectronics Laboratory, Southwest Jiaotong University, Chengdu 610031, China;
b State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Abstract  Bell's theorem states that quantum mechanics cannot be accounted for by any local theory. One of the examples is the existence of quantum non-locality is essentially violated by the local Bell's inequality. Therefore, the violation of Bell's inequality (BI) has been regarded as one of the robust evidences of quantum mechanics. Until now, BI has been tested by many experiments, but the maximal violation (i.e., Cirel'son limit) has never been achieved. By improving the design of entangled sources and optimizing the measurement settings, in this work we report the stronger violations of the Clauser–Horne–Shimony–Holt (CHSH)-type Bell's inequality. The biggest value of Bell's function in our experiment reaches to a significant one: S=2.772± 0.063, approaching to the so-called Cirel'son limit in which the Bell function value is S=2√2. Further improvement is possible by optimizing the entangled-photon sources.
Keywords:  quantum entanglement      coherent optical effects      Bell inequality  
Received:  23 November 2014      Revised:  28 January 2015      Published:  05 August 2015
PACS:  42.50.-p (Quantum optics)  
  42.50.Ar  
  42.50.Dv (Quantum state engineering and measurements)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61308008, 91321104, U1330201, and 11174373) and the Fundamental Research Funds for the Central Universities (Grant No. 2682014CX081).
Corresponding Authors:  Wei Lian-Fu     E-mail:  weilianfu@gmail.com

Cite this article: 

Wang Yao, Fan Dai-He, Guo Wei-Jie, Wei Lian-Fu Strong violations of locality by testing Bell's inequality with improved entangled-photon systems 2015 Chin. Phys. B 24 084203

[1] Einstein A, Podolsky B and Rosen N 1935 Phys. Rev. 47 777
[2] Bohm D and Aharonov Y 1957 Phys. Rev. 108 1070
[3] Kuang L M and Sun Y H 2006 Chin. Phys. 15 681
[4] Bell J S 1964 Phys. 1 195
[5] Nielsen M A and Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge: Cambridge University Press)
[6] Resch Z J, Lindenthal M, Blauensteiner B, Bohm H R, Fedrizzi A, Kurtsiefer C, Poppe A, Schmitt-Manderbach T, Taraba M, Ursin R, Walther P, Weier H, Weinfurter H and Zeilinger A 2005 Opt. Express 13 202
[7] Clauser J, Horne M, Shimony A and Holt R 1969 Phys. Rev. Lett. 23 880
[8] Clauser J and Home M 1974 Phys. Rev. D 10 526
[9] Clauser J and Shimony A 1978 Rep. Prog. Phys. 41 1881
[10] Aspect A, Grangier P and Roger G 1981 Phys. Rev. Lett. 47 460
[11] Aspect A, Grangier P and Roger G 1982 Phys. Rev. Lett. 49 91
[12] Aspect A, Grangier P and Roger G 1982 Phys. Rev. Lett. 49 1804
[13] Ou Z Y and Mandel L 1988 Phys. Rev. Lett. 61 50
[14] Shin Y H and Alley C O 1988 Phys. Rev. Lett. 61 2921
[15] Rarity J and Tapster P 1990 Phys. Rev. Lett. 64 2495
[16] Kwiat P, Mattle K, Weinfurter H and Zeilinger A 1995 Phys. Rev. Lett. 75 4337
[17] Kwiat P, Waks E, Whit A, Appelbaum I and Eberhard P 1999 Phys. Rev. A 60 R773
[18] Huang Y F, Li C F, Zhang Y S and Guo G C 2001 Phys. Lett. A 287 317
[19] Aspelmeyer M, Bohm H R, Gyatso T, Jennewein T, Kaltenbaek R, Lindenthal M, Molina-Terriza G, Poppe A, Resh K, Taraba M, Ursin R, Walther P and Zeilinger A 2003 Science 301 621
[20] Peng C Z, Yang T, Bao X H, Zhang J, Jin X M, Feng F Y, Yang B, Yang J, Yin J, Zhang Q, Lin N, Tian B L and Pan J W 2005 Phys. Rev. Lett. 94 150501
[21] Wang S K, Ren J G, Yang D, Peng C Z, Jiang S, Wang X B, Jin X M and Yang B 2008 Acta Phys. Sin. 57 1356 (in Chinese)
[22] Cirel's B S 1980 Lett. Math. Phys. 4 93
[23] Leonhardt U 1997 Measuring the Quantum States of Light (Cambridge: Cambridge University Press)
[24] http://www.quantum-info.com/
[25] James D, Kwiat P, Munro W and White A 2001 Phys. Rev. A 64 052312
[26] Fan D H, Guo W J and Wei L F 2012 J. Opt. Soc. Am. B 29 3429
[27] Press W, Flannery B, Teukolsky S and Vetterling W 1992 Numerical Recipes in Fortran 77: The Art of Scientific Computing, 2nd edn. (Cambridge: Cambridge University Press)
[28] Christensen B G, McCusker K T, Altepeter J B, Calkins B, Gerrits T, Lita A E, Miller A, Shalm L K, Zhang Y, Nam S W, BrunnerN, Lim C W, Gisin N and Kwiat P G 2013 Phys. Rev. Lett. 111 130406
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