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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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| Cite this article: |
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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.
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| Keywords:
03.75.Lm
03.75.Mn
03.75.Kk
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Received: 13 November 2009
Published: 28 June 2010
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| PACS: |
03.75.Lm
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(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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03.75.Mn
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(Multicomponent condensates; spinor condensates)
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03.75.Kk
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(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
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