12 research outputs found

    Simple method for excitation of a Bose-Einstein condensate

    Full text link
    An appropriate, time-dependent modification of the trapping potential may be sufficient to create effectively collective excitations in a cold atom Bose-Einstein condensate. The proposed method is complementary to earlier suggestions and should allow the creation of both dark solitons and vortices.Comment: 8 pages, 7 figures, version accepted for publication in Phys. Rev.

    Interference of a Bose-Einstein condensate in a hard-wall trap: from nonlinear Talbot effect to formation of vorticity

    No full text
    We theoretically study the coherent expansion of a Bose-Einstein condensate in the presence of a confining impenetrable hard-wall potential. The nonlinear dynamics of the macroscopically coherent matter field results in rich and complex spatio-temporal self-interference patterns demonstrating a nonlinear Talbot effect, and the formation of vorticity and solitonlike structures

    The Role of Schwann Cell in Nerve Regeneration

    No full text
    corecore