Entanglement and nonlocality versus spontaneous emission in two-atom systems

被引：42

作者：

Jakóbczyk, L ^{[1
]}

Jamróz, A ^{[1
]}

机构：

[1] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland

来源：

PHYSICS LETTERS A | 2003年 / 318卷 / 4-5期

关键词：

spontaneous emission; entanglement; Bell inequality;

D O I：

10.1016/j.physleta.2003.09.044

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study evolution of entanglement of two two-level atoms in the presence of dissipation caused by spontaneous emission. We find explicit formulas for the amount of entanglement as a function of time, in the case of destruction of the initial entanglement and possible creation of a transient entanglement between atoms. We also discuss how spontaneous emission influences nonlocality of states expressed by violation of Bell-CHSH inequality. It is shown that evolving system very quickly becomes local, even if entanglement is still present or produced. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：318 / 326

页数：9

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