Properties of Linear Entropy in k-Photon Jaynes-Cummings Model with Stark Shift and Kerr-Like Medium

被引：0

作者：

廖庆洪 ^{[1
]}

Muhammad Ashfaq Ahmad ^{[2
]}

王月媛 ^{[1
]}

刘树田 ^{[1
]}

机构：

[1] Department of Physics, Harbin Institute of Technology

[2] Department of Physics, COMSATS Institute of Information Technology

来源：

CommunicationsinTheoreticalPhysics | 2010年 / 53卷 / 05期

基金：

中国国家自然科学基金;

关键词：

κ-photon Jaynes-Cummings model; linear entropy; stark shift; Kerr-like medium;

D O I：

暂无

中图分类号：

O431 [光本性的理论];

学科分类号：

070207 ; 0803 ;

摘要：

The time evolution of the linear entropy of an atom in k-photon Jaynes-Cummings model is investigatedtaking into consideration Stark shift and Kerr-like medium. The effect of both the Stark shift and Kerr-like medium onthe linear entropy is analyzed using a numerical technique for the field initially in coherent state and in even coherentstate. The results show that the presence of the Kerr-like medium and Stark shift has an important effect on theproperties of the entropy and entanglement. It is also shown that the setting of the initial state plays a significant rolein the evolution of the linear entropy and entanglement.

引用

页码：931 / 936

页数：6