The effects of thermal photons on entanglement dynamics for a dispersive Jaynes-Cummings model

被引：37

作者：

Obada, A. -S. F. ^{[2
]}

Hessian, H. A. ^{[1
]}

Mohamed, A. -B. A. ^{[1
]}

机构：

[1] Assiut Univ, Fac Sci, Assiut, Egypt

[2] Al Azhar Univ, Fac Sci, Cairo, Egypt

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 20期

关键词：

D O I：

10.1016/j.physleta.2008.02.046

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the master equation, we give a fully analytical description of the dynamics of an atom dispersively coupled to a field mode in a dissipative cavity. The effects of thermal photons ((n) over bar = 0) on entanglement and coherence loss are investigated. It is found that the field is inhibited from going into a pure state and coherence is lost faster than in the case of zero temperature ((n) over bar = 0). (c) 2008 Published by Elsevier B.V.

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页码：3699 / 3706

页数：8

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