Continuous-Variable Entanglement Transfer from Cavity Field to Two Mesoscopic Josephson Junctions

作     者：常平 邵彬 王兆明 邹健 

作者机构：Department of Physics Beijing Institute of Technology Beijing 100081 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2008年第25卷第3期

页      面：1098-1101页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10374007 

主　　题：NONCLASSICAL MICROWAVES CRITERION SYSTEMS LIGHT STATE 

摘      要：We consider a composite system of two remote mesoscopic dosephson junctions interacting locally with a two-mode non-classical cavity field and investigate entanglement transfer from a bipartite continuous-variable （CV） system to a pair of localized mesoscopic dosephson junctions. We obtain analytically the time-dependent characteristic functions in the Wigner representation for the two CV subsystems, where two cases are considered for the zero and finite temperatures. Furthermore, we analyse the influences of the temperature on the period recovery of the entanglement.