Level crossing in a two-photon Jaynes-Cummings model

被引：0
|
作者：
任学藻 [1 ]
丛红璐 [2 ]
廖旭 [1 ]
黎雷 [1 ]
机构：
[1] School of Science,Southwest University of Science and Technology
[2] Physics Group,Beijing Jiao Tong University Haibin College
来源：
Chinese Physics B | 2012年 / 05期
基金：
中国国家自然科学基金;
关键词：
level crossing; fidelity; two-photon Jaynes-Cummings model;
D O I：
暂无
中图分类号：
O431.2 [量子光学];
学科分类号：
摘要：
In this paper,the energy spectrum of the two-photon Jaynes-Cummings model(TPJCM) is calculated exactly in the non-rotating wave approximation(non-RWA),and we study the level-crossing problem by means of fidelity.A narrow peak of the fidelity is observed at the level-crossing point,which does not appear at the avoided-crossing point.Therefore fidelity is perfectly suited for detecting the level-crossing point in the energy spectrum.
引用
收藏
页码：283 / 286
页数：4
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