Stronger two-observer all-versus-nothing violation of local realism

被引：30
作者：
Cabello, A [1 ]
机构：
[1] Univ Sevilla, Dept Fis Alicada 2, E-41012 Seville, Spain
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.95.210401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We introduce a two-observer all-versus-nothing proof of Bell's theorem which reduces the number of required quantum predictions from 9 [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001); Z.-B. Chen , Phys. Rev. Lett. 90, 160408 (2003)] to 4, provides a greater amount of evidence against local realism, reduces the detection efficiency requirements for a conclusive experimental test of Bell's theorem, and leads to a Bell inequality which resembles Mermin's inequality for three observers [N. D. Mermin, Phys. Rev. Lett. 65, 1838 (1990)] but requires only two observers.
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页数：4
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