Sudden death and revival of entanglement of two qubits coupled collectively to a thermal reservoir

被引：0

作者：

廖湘萍 ^{[1
]}

方见树 ^{[1
]}

方卯发 ^{[2
]}

机构：

[1] College of Science,Hunan University of Technology

[2] College of Physics and Information Science,Hunan Normal University

来源：

Chinese Physics B | 2010年 / 19卷 / 09期

基金：

中国国家自然科学基金;

关键词：

sudden death of entanglement; two qubits; the thermal reservoir;

D O I：

暂无

中图分类号：

O431.2 [量子光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we investigate the entanglement of two qubits coupled collectively to a common thermal environment and find that the the collective decay can lead to a revival of the entanglement that has already been destroyed. We also show that the ability of the system to revival entanglement relies on the mean photon number of the thermal environment and the degree of entanglement of the initial state.

引用

页码：383 / 389

页数：7

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