Phase Dissipation of an Open Two-Mode Bose-Einstein Condensate  

作　　者：李艳娜 李卫东 

机构地区：[1]Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006

出　　处：《Chinese Physics Letters》2017年第7期24-28,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11374197;the Program for Changjiang Scholars and Innovative Research Team in Universities of China under Grant No IRT13076;the Hundred Talent Program of Shanxi Province

摘　　要：We study the dynamics of a two-mode Bose flubbard model with phase dissipation, based on the master equation. An analytical solution is presented with nonzero asymmetry and phase noise. The effects of asymmetry and phase noise play a contrasting role in the dynamics. The asymmetry makes the oscillation fast, while phase noise enlarges the period. The conditions for the cases of fast decay and oscillation are presented. As a possible application, the dynamical evolution of the population for cold atomic gases with synthetic gauge interaction, which can be understood as two-mode dynamics in momentum space, is predicted.We study the dynamics of a two-mode Bose flubbard model with phase dissipation, based on the master equation. An analytical solution is presented with nonzero asymmetry and phase noise. The effects of asymmetry and phase noise play a contrasting role in the dynamics. The asymmetry makes the oscillation fast, while phase noise enlarges the period. The conditions for the cases of fast decay and oscillation are presented. As a possible application, the dynamical evolution of the population for cold atomic gases with synthetic gauge interaction, which can be understood as two-mode dynamics in momentum space, is predicted.

关 键 词：Phase Dissipation of an Open Two-Mode Bose-Einstein Condensate 

分 类 号：O469[理学—凝聚态物理]