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

被引：0
作者：
Liao Qing-Hong [1 ]
Ahmad, Muhammad Ashfaq [2 ]
Wang Yue-Yuan [1 ]
Liu Shu-Tian [1 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
[2] COMSATS Inst Informat Technol, Dept Phys, Lahore 54000, Pakistan
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2010年 / 53卷 / 05期
基金：
中国国家自然科学基金;
关键词：
k-photon Jaynes-Cummings model; linear entropy; stark shift; Kerr-like medium; QUANTUM CRYPTOGRAPHY; FIELD ENTROPY; STATE; ENTANGLEMENT; EVOLUTION; LIGHT; COLLAPSE; REVIVAL;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time evolution of the linear entropy of an atom in k-photon Jaynes-Cummings model is investigated taking into consideration Stark shift and Kerr-like medium. The effect of both the Stark shift and Kerr-like medium on the linear entropy is analyzed using a numerical technique for the field initially in coherent state and in even coherent state. The results show that the presence of the Kerr-like medium and Stark shift has an important effect on the properties of the entropy and entanglement. It is also shown that the setting of the initial state plays a significant role in the evolution of the linear entropy and entanglement.
引用
收藏
页码：931 / 936
页数：6
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