Entanglement evolution and transfer in a double Tavis-Cumming model in cavity QED

作     者：徐庆君 张士英 

作者机构：Department of Physics and Electronic Engineering Zaozhuang University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2009年第18卷第10期

页      面：4117-4121页

核心收录：

学科分类：070207[理学-光学] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：entanglement evolution entanglement transfer Tavis-Cumming model 

摘      要：We have studied entanglement evolution and transfer in a double Tavis-Cumming model where two pairs of entangled two-level atoms AB and CD interact with two single-mode cavity fields a and b. We show that the Bellwlike initial state of atoms AB can exhibit entanglement sudden death which should be independent of the initial entanglement of atoms CD. Also, we show that the initial entanglement of one atomic pair can be transferred into another pair, as well as the possible subsystems, that become entangled during evolution.