摘要
The chaotic ratchet effect for Bose-Einstein condensed atoms in an optical lattice is investigated.By usingthe direct perturbation method we obtain the chaotic solution of the condensed system.Theoretical analysis revealsthat the transport of the condensed atoms in the ratchet potential is a chaotic one,and corresponding numerical resultsagree well with the theoretical results.
The chaotic ratchet effect for Bos-Einstein condensed atoms in an optical lattice is investigated. By using the direct perturbation method we obtain the chaotic solution of the condensed system. Theoretical analysis reveals that the transport of the condensed atoms in the ratchet potential is a chaotic one, and corresponding numerical results agree well with the theoretical results.
基金
the Key Research Foundation of the Education Bureau of Hunan Province of China under Grant No.08A015
the Natural Science Foundation of Hunan Province of China under Grant No.06JJ2014 and 04JJ40006
the National Natural Science Foundation of China under Grant No.10575034
