Relativistic entanglement and Bell's inequality

被引：106

作者：

Ahn, D ^{[1
]}

Lee, HJ

Moon, YH

Hwang, SW

机构：

[1] Univ Seoul, Inst Quantum Informat Proc & Syst, Seoul 130743, South Korea

[2] Univ Seoul, Dept Elect & Comp Engn, Seoul 130743, South Korea

[3] Korea Univ, Dept Elect Engn, Seoul 136701, South Korea

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.67.012103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, the Lorentz transformation of entangled Bell states seen by a moving observer is studied. The calculated Bell observable for four joint measurements turns out to give a universal value, <(a) over cap circle times(b) over cap >+<(a) over cap circle times(b) over cap (')>+<(a) over cap (')circle times(b) over cap >-<(a) over cap (')circle times(b) over cap (')>=(2/root2-beta(2))(1+root1-beta(2)), where (a) over cap,(b) over cap are the relativistic spin observables derived from the Pauli-Lubanski pseudovector and beta=(v/c). We found that the degree of violation of the Bell's inequality is decreasing with increasing velocity of the observer and Bell's inequality is satisfied in the ultrarelativistic limit where the boost speed reaches the speed of light.

引用

页数：8

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