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Chin. Phys. B, 2014, Vol. 23(6): 060310    DOI: 10.1088/1674-1056/23/6/060310
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Nonautonomous dark soliton solutions in two-component Bose-Einstein condensates with a linear time-dependent potential

Li Qiu-Yan, Wang Shuang-Jin, Li Zai-Dong
Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China
Abstract  We report the analytical nonautonomous soliton solutions (NSSs) for two-component Bose-Einstein condensates with the presence of a time-dependent potential. These solutions show that the time-dependent potential can affect the velocity of NSS. The velocity shows the characteristic of both increasing and oscillation with time. A detailed analysis for the asymptotic behavior of NSSs demonstrates that the collision of two NSSs of each component is elastic.
Keywords:  nonautonomous soliton solution      interaction      Bose-Einstein condensates  
Received:  20 September 2013      Revised:  21 November 2013      Published:  15 June 2014
PACS:  03.75.Lm (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)  
  05.30.Jp (Boson systems)  
Fund: Project supported by the Key Project of the Chinese Ministry of Education (Grant No. 2011015) and the Natural Science Foundation of Hebei Province of China (Grant No. A2012202023).
Corresponding Authors:  Li Qiu-Yan     E-mail:  lqy32@live.com

Cite this article: 

Li Qiu-Yan, Wang Shuang-Jin, Li Zai-Dong Nonautonomous dark soliton solutions in two-component Bose-Einstein condensates with a linear time-dependent potential 2014 Chin. Phys. B 23 060310

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