Dynamics of kicked matter-wave solitons in an optical lattice
arXiv:0807.3432 · doi:10.1016/j.physd.2008.07.010
Abstract
We investigate effects of the application of a kick to one-dimensional matter-wave solitons in a self-attractive Bose-Einstein condensate trapped in a optical lattice. The resulting soliton's dynamics is studied within the framework of the time-dependent nonpolynomial Schrodinger equation. The crossover from the pinning to quasi-free motion crucially depends on the size of the kick, strength of the self-attraction, and parameters of the optical lattice.
8 pages, 6 figures, to be published in Physica D: Nonlinear Phenomena; special issue on "Nonlinear Phenomena in Degenerate Quantum Gases"
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