Chin. Phys. Lett.  2006, Vol. 23 Issue (8): 2000-2003    DOI:
Original Articles |
Nonlinear Wave in a Disc-Shaped Bose--Einstein Condensate
DUAN Wen-Shan; CHEN Jian-Hong; YANG Hong-Juan;SHI Yu-Ren; WANG Hong-Yan
Department of Physics, Northwest Normal University, Lanzhou 730070
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DUAN Wen-Shan, CHEN Jian-Hong, YANG Hong-Juan et al  2006 Chin. Phys. Lett. 23 2000-2003
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Abstract We discuss the possible nonlinear waves of atomic matter wave in a Bose--Einstein condensate. One and two of two-dimensional (2D) dark solitons in the Bose--Einstein condensed system are investigated. A rich dynamics is studied for the interactions between two solitons. The interaction profiles of two solitons are greatly different if the angle between them are different. If the angle is small enough, the maximum amplitude during the interaction between two solitons is even less than that of a single soliton. However, if the angle is large enough, the maximum amplitude of two solitons can gradually attend to the sum of two soliton amplitudes.
Keywords: 03.75.-b      42.81.Dp      11.10.Lm      42.50.Md     
Published: 01 August 2006
PACS:  03.75.-b  
  42.81.Dp (Propagation, scattering, and losses; solitons)  
  11.10.Lm (Nonlinear or nonlocal theories and models)  
  42.50.Md (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I8/02000
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DUAN Wen-Shan
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YANG Hong-Juan
SHI Yu-Ren
WANG Hong-Yan
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