Traveling wave solutions for discrete dipole Bose-Einstein condensate system
Discrete nonlinear Schrodinger equations(DNLSE)play an important role in the research of com-plex physical systems.In this paper,we study the movement of the dipole Bose-Einstein condensate(BEC)in an optical lattice,the dynamic is described by a DNLSE.As a result,three kinds of traveling wave solu-tions with parameters are obtained by using the extend(G'/G)-expansion method,which are hyperbolic function solutions,trigonometric function solutions,and rational function solutions.Under some parame-ter conditions,a discrete array of bright solitons with the same amplitude is obtained.We also study the effect of parameters on the amplitude of soliton.This paper may be helpful to the dynamics study of complex discrete nonlinear physical models.
the extend(G'/G)-expansion methodtraveling wave solutionbright soliton
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