Chin. Phys. Lett.  2010, Vol. 27 Issue (7): 070306    DOI: 10.1088/0256-307X/27/7/070306
GENERAL |
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
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LIU Xun-Xu, ZHANG Xiao-Fei, ZHANG Peng 2010 Chin. Phys. Lett. 27 070306
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Abstract

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.

Keywords: 03.75.Lm      03.75.Mn      03.75.Kk     
Received: 13 November 2009      Published: 28 June 2010
PACS:  03.75.Lm (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)  
  03.75.Mn (Multicomponent condensates; spinor condensates)  
  03.75.Kk (Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/7/070306       OR      https://cpl.iphy.ac.cn/Y2010/V27/I7/070306
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LIU Xun-Xu
ZHANG Xiao-Fei
ZHANG Peng
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