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

doi:10.1088/1674-1056/24/8/084203

中国物理B ›› 2015, Vol. 24 ›› Issue (8): 84203-084203.doi: 10.1088/1674-1056/24/8/084203

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

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

王尧^a, 樊代和^a, 郭伟杰^a, 韦联福^{a 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

收稿日期:2014-11-23 修回日期:2015-01-28 出版日期:2015-08-05 发布日期:2015-08-05
基金资助:
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).

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

Wang Yao (王尧)^a, Fan Dai-He (樊代和)^a, Guo Wei-Jie (郭伟杰)^a, Wei Lian-Fu (韦联福)^{a 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

Received:2014-11-23 Revised:2015-01-28 Online:2015-08-05 Published:2015-08-05
Contact: Wei Lian-Fu E-mail:weilianfu@gmail.com
Supported by:
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).

摘要/Abstract

摘要： 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.

关键词: quantum entanglement, coherent optical effects, Bell inequality

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.

Key words: quantum entanglement, coherent optical effects, Bell inequality

中图分类号: (Quantum optics)

42.50.-p

42.50.Dv (Quantum state engineering and measurements)

王尧, 樊代和, 郭伟杰, 韦联福. Strong violations of locality by testing Bell's inequality with improved entangled-photon systems[J]. 中国物理B, 2015, 24(8): 84203-084203.

Wang Yao (王尧), Fan Dai-He (樊代和), Guo Wei-Jie (郭伟杰), Wei Lian-Fu (韦联福). Strong violations of locality by testing Bell's inequality with improved entangled-photon systems[J]. Chin. Phys. B, 2015, 24(8): 84203-084203.

参考文献 28

[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

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

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

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