Dark Matter-Wave Solitons in Optical Lattices
Louis, Pearl J. Y. · Ostrovskaya, Elena A. · Kivshar, Yuri S.
Original · EN
We analyze the Floquet-Bloch matter-wave spectrum of Bose-Einstein condensates loaded into single-periodic optical lattices and double-periodic superlattices. In the framework of the Gross-Pitaevskii equation, we describe the structure and analyze the mobility properties of dark matter-wave solitons residing on the background of extended nonlinear Bloch-type states. We demonstrate that interaction between dark solitons can be effectively controlled in optical superlattices.
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