Bose-Einstein condensates in optical lattices: band-gap structure and solitons
We analyze the existence and stability of spatially extended (Bloch-type) and localized states of a Bose- Einstein condensate loaded into an optical lattice. In the framework of the Gross-Pitaevskii equation with a periodic potential, we study the band-gap structure of the matter-wave spectrum in both the linear and nonlinear regimes. We demonstrate the existence of families of spatially localized matter-wave gap solitons, and analyze their stability in different band gaps, for both...[Show more]
|Collections||ANU Research Publications|
|Source:||Physical Review A: Atomic, Molecular and Optical Physics|
|Louis_Bose2003.pdf||511.08 kB||Adobe PDF|
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