Functional Bell inequalities can serve as a stronger entanglement witness than conventional Bell inequalities

被引：18

作者：

SenDe, A ^{[1
]}

Sen, U ^{[1
]}

Zukowski, M ^{[1
]}

机构：

[1] Univ Gdansk, Inst Fiz Teoret & Astrofiz, PL-80952 Gdansk, Poland

来源：

PHYSICAL REVIEW A | 2002年 / 66卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.66.062318

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider a Bell inequality for a continuous range of settings of the apparatus at each site. This "functional" Bell inequality gives a better range of violation for generalized Greenberger, Home, and Zeilinger states. Also a family of N-qubit bound entangled states violate this inequality for N>5.

引用

页数：4

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