Experimental violation of a spin-1 Bell inequality using maximally entangled four-photon states

被引：150

作者：

Howell, JC ^{[1
]}

Lamas-Linares, A ^{[1
]}

Bouwmeester, D ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.88.030401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate the experimental violation of a spin-1 Bell inequality. The spin-1 inequality is based on the Clauser, Horne, Shimony, and Holt formalism. For entangled spin-1 particles, the maximum quantum-mechanical prediction is 2.55 as opposed to a maximum of 2, predicted using local hidden variables. We obtained an experimental value of 2.27 +/- 0.02 using the four-photon state generated by pulsed, type-II, stimulated parametric down-conversion. This is a violation of the spin-1 Bell inequality by more than 13 standard deviations.

引用

页码：030401/1 / 030401/4

页数：4

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