Loophole-free Bell's experiments and two-photon all-versus-nothing violations of local realism

被引：10

作者：

Cabello, A ^{[1
]}

机构：

[1] Univ Seville, Dept Fis Aplicada 2, E-41012 Seville, Spain

来源：

PHYSICAL REVIEW A | 2005年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.72.050101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce an extended version of a previous all-versus-nothing proof of impossibility of Einstein-Podolsky-Rosen's local elements of reality for two photons entangled both in polarization and path degrees of freedom (A. Cabello, quant-ph/0507259), which leads to a Bell's inequality where the classical bound is 8 and the quantum prediction is 16. A simple estimation of the detection efficiency required to close the detection loophole using this extended version gives eta>0.69. This efficiency is lower than that required for previous proposals.

引用

页数：4

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