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Laser Physics

Generating vector solitary waves of Bose-Einstein Condensates in optical lattices

Luis Plaja, Julio San Román

Published Feb 1, 2006• 0 citations
Publisher

Abstract

We describe the process of formation of vector solitary waves in Bose-Einstein Condensates located in optical lattices. The two components of the vector correspond to the envelope of the condensate mean field wavefunction in the Wannier basis of the first and second bands.
DOI
10.1134/s1054660x06020241

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We demonstrate the existence of a new class of two-component vector solitary waves in which dispersion coefficients have of opposite signs. Stability is achieved by inclusion of an additional linear coupling between the vector components that counterbalances the instability produced by the mixed dispersion and the non-linearity. In addition, we demonstrate that these solutions are experimentally observable as gap vector solitons in Bose-Einstein condensates located in oscillating optical lattices. The proposed experiment falls well within the standard experimental procedures for generating gap solitons in today's laboratories.
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