We investigate effects of the application of a kick to one-dimensional matter-wave solitons in a self-attractive Bose-Einstein condensate trapped in an optical lattice. The resulting soliton's dynamics is studied within the framework of the time-dependent nonpolynomial Schrödinger 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.
|Number of pages||6|
|Journal||Physica D: Nonlinear Phenomena|
|State||Published - 15 Jul 2009|
- Bose-Einstein condensation
- Periodic potentials
- Phase imprinting