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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
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.
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页码:931 / 936
页数:6
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