Vector Solitons and Soliton Collisions in Two-Component Bose-Einstein Condensates
LIU Xun-Xu1, ZHANG Xiao-Fei1,2, ZHANG Peng1
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 2College of Science, Honghe University, Mengzi 661100
Vector Solitons and Soliton Collisions in Two-Component Bose-Einstein Condensates
LIU Xun-Xu1, ZHANG Xiao-Fei1,2, ZHANG Peng1
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 2College of Science, Honghe University, Mengzi 661100
With realistic parameters, both analytical and computational studies demonstrate the feasibility of forming bright-bright vector solitons in a self-repulsive two-component Bose-Einstein condensate with attractive inter-component interaction. Moreover, the stability of such solitons is confirmed by direct numerical simulations, by a Bogoliubov spectrum analysis, and by examining the collisions between two vector solitons. Our results are of considerable experimental interest.
With realistic parameters, both analytical and computational studies demonstrate the feasibility of forming bright-bright vector solitons in a self-repulsive two-component Bose-Einstein condensate with attractive inter-component interaction. Moreover, the stability of such solitons is confirmed by direct numerical simulations, by a Bogoliubov spectrum analysis, and by examining the collisions between two vector solitons. Our results are of considerable experimental interest.
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2010, Vol. 27 
