Entanglement dynamics of two atoms successively passing a cavity

作     者：廖庆洪 方光宇 王月媛 M.A.Ahmad 刘树田 

作者机构：Department of PhysicsHarbin Institute of Technology Department of PhysicsCOMSATS Institute of Information Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2010年第8卷第12期

页      面：1191-1194页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (No.10974039) the National Basic Research Program of China (No.2006CB302901) 

主　　题：Photons 

摘      要：By means of concurrence, we investigate the dynamics of entanglement between two initially separate atoms in succession passing through a cavity and their interaction with a Fock state field. We then analyze the effects of the atomic coherence, photon number, and atomic motion on the time evolution of atom-atom entanglement. The results show that there can be entanglement between two separate atoms, and that the threshold time for the creation of the entanglement is controllable by the photon number, atomic motion, and field-mode structure.