2003/11/04 by Pearl J. Y. Louis, Louis, Pearl J. Y., Elena A. Ostrovskaya +3
Chemistry · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Spectroscopy and Laser Applications #Strong Light-Matter Interactions #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/0311059
15 pages, 7 figures, submitted to J. Opt. B; Topical Issue: Optical Solitons
arxiv created 2003/11/04 · arxiv updated 2009/12/01
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.