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
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.
引用
收藏
页码:3699 / 3706
页数:8
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