Dynamics of vector solitons in two-component Bose-Einstein condensates with time-dependent interactions and harmonic potential  

作　　者：周政 俞慧友 颜家壬 

机构地区：[1]College of Physics and Information Science,Hunan Normal University

出　　处：《Chinese Physics B》2010年第1期46-50,共5页中国物理B（英文版）

基　　金：Projects supported by the National Natural Science Foundation of China (Grant Nos. 10775049 and 10375022)

摘　　要：We present two kinds of exact vector-soliton solutions for coupled nonlinear Schrodinger equations with time- varying interactions and time-varying harmonic potential. Using the variational approach, we investigate the dynamics of the vector solitons. It is found that the two bright sol/tons oscillate about slightly and pass through each other around the equilibration state which means that they are stable under our modeh At the same time, we obtain the opposite situation for dark-dark solitons.We present two kinds of exact vector-soliton solutions for coupled nonlinear Schrodinger equations with time- varying interactions and time-varying harmonic potential. Using the variational approach, we investigate the dynamics of the vector solitons. It is found that the two bright sol/tons oscillate about slightly and pass through each other around the equilibration state which means that they are stable under our modeh At the same time, we obtain the opposite situation for dark-dark solitons.

关 键 词：two-component Bose Einstein condensates vector solitons the variational approach 

分 类 号：O469[理学—凝聚态物理]