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Superposition solitons in two-component Bose-Einstein condensates |
| Wang Xiao-Min (王晓敏), Li Qiu-Yan (李秋艳), Li Zai-Dong (李再东) |
| Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China |
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Abstract We develope the Hirota bilinear method and obtain the exact one and two superposition soliton solutions for two-component Bose-Einstein condensates. The conversion of three kinds of solitons including the superposition solitons, bright-bright solitons, and dark-bright solitons is discussed. With the energy analysis, we find that the superposition soliton state is an excitation state for this system. Moreover, the collision of two superposition solitons is found to be elastic.
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Received: 15 September 2012
Revised: 21 November 2012
Accepted manuscript online:
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PACS:
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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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05.30.Jp
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(Boson systems)
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| Fund: Project supported by the Natural Science Foundation of Hebei Province, China (Grant Nos. A2012202022 and A2012202023), the Key Project of the Chinese Ministry of Education (Grant No. 2011015), and the Hundred Innovation Talents Supporting Project of Hebei Province, China (Grant No. CPRC014). |
Corresponding Authors:
Li Zai-Dong
E-mail: zdli2003@yahoo.com
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Cite this article:
Wang Xiao-Min (王晓敏), Li Qiu-Yan (李秋艳), Li Zai-Dong (李再东) Superposition solitons in two-component Bose-Einstein condensates 2013 Chin. Phys. B 22 050311
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