Matter-Wave Solitons in Two-Component Bose—Einstein Condensates with Tunable Interactions and Time Varying Potential  

作　　者：宣恒农 左苗 

机构地区：[1]School of Information Engineering,Nanjing University of Financial and Economics

出　　处：《Communications in Theoretical Physics》2011年第12期1035-1040,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11041003 and 60802087;the Natural Science Foundation of Jiangsu Province under Grant No.BK2004119

摘　　要：We present three families of exact matter-wave soliton solutions for an effective one-dimension twocomponent Bose-Einstein condensates(BECs) with tunable interactions,harmonic potential and gain or loss term. We investigate the dynamics of bright-bright solitons,bright-dark solitons and dark-dark solitons for the time-dependent expulsive harmonic trap potential,periodically modulated harmonic trap potential,and kinklike modulated harmonic trap potential.Through the Feshbach resonance,these dynamics can be realized in experiments by suitable control of time-dependent trap parameters,atomic interactions,and interaction with thermal cloud.

关 键 词：matter-wave solitons Bose-Einstein condensates coupled Gross-Pitaevskii equation 

分 类 号：O469[理学—凝聚态物理]