J4 ›› 2012, Vol. 29 ›› Issue (3): 344-348.

• Nonlinear Optics • Previous Articles     Next Articles

Effect of parameters on evolution of the linearly coupling matter-wave solitons

LIU Fei1,2, YI Lin1   

  1. 1 Schoolt of Physics,Huazhong University of Science and Technology,Wuhan 430074,China; 
    2 Department of Physics,Hubei Nomal University,Huangshi 435002, China
  • Received:2011-04-19 Revised:2011-06-10 Published:2012-05-28 Online:2012-05-22

Abstract:

The dynamical characteristics of two linearly coupling solitons with a localized impurity in Bose-Einstein condensates are investigated by direct numerical simulations of the Gross-Pitaevskii equation with split-step Fourier method. It is found that the evolution of solitons depends on the impurity strength and the linearly coupling parameters of the system, and there exist exchange, self-trapping and Josephson oscillator with the increasing of linearly coupling parameters. The effect of the impurity strength of potential well on the evolution of solitons is little when some given values are taken.

Key words: quantum optics, split-step Fourier method, matter-wave soliton, parameters of the system, linearly coupling

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