Violation of Bell's inequality by a generalized Einstein-Podolsky-Rosen state using homodyne detection

被引：87

作者：

Kuzmich, A ^{[1
]}

Walmsley, IA

Mandel, L

机构：

[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[2] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.85.1349

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using homodyning with weak coherent fields and photon counting, we have observed violations of Bell-type inequalities by the generalized Einstein-Podolsky-Rosen state produced in a pulsed nondegenerate optical parametric amplifier, as predicted by Grangier et al. [Phys. Rev. A 38, 3132 (1988)]. The maximum observed visibility of the interference pattern was (89 +/- 4)%. This interference can be regarded as a manifestation of nonlocality in the sense described by Banaszek and Wodkiewicz [Phys. Rev. A 58, 4345 (1998)]. We have investigated the interference both theoretically and experimentally and have measured the influence of dispersion and phase matching.

引用

页码：1349 / 1353

页数：5

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