Dark Matter-Wave Solitons in Optical Lattices

Details Dark Matter-Wave Solitons in Optical Lattices Dark Matter-Wave Solitons in Optical Lattices

2003-11-04

arxiv.org/abs/cond-mat/0311059v1

Physics

Condensed Matter

15 pages, 7 figures, submitted to J. Opt. B; Topical Issue: Optical Solitons

Scientific paper

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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