Effects of Quantum Correction on Dynamical Phase Transition in a Single Species Bosonic Josephson Junction  

作　　者：田静 邱海波 

机构地区：[1]School of Science,Xi'an University of Posts and Telecommunications

出　　处：《Communications in Theoretical Physics》2013年第8期171-174,共4页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.11104217;the Science Plan Foundation Office of the Education Department of Shaanxi Province under Grant No.11JK0555;the Youth Foundation of XUPT under Grant Nos.0001295 and 0001287

摘　　要：In this paper, by employing Bogliubov backreaction method, we investigate quantum correction effects on dynamical phase transition in a single species bosonic Josephson junction induced by increasing nonlinear interaction. Compared with mean field theory results, we find that the transition point is shined. The dynamical phase transition is accompanied by a change of the entanglement entropy, which is found to reach a maximum at the transition point of the mean field theory.

关 键 词：DECOHERENCE SELF-TRAPPING Josephson oscillation 

分 类 号：O431.2[机械工程—光学工程]