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Two-dimensional periodic waves in a supersonic flow of a Bose-Einstein condensate

G. A. El, Yu. G. Gladush, A. M. Kamchatnov

nlin.PSarXiv:nlin/0609022

Abstract

Stationary periodic solutions of the two-dimensional Gross-Pitaevskii equation are obtained and analyzed for different parameter values in the context of the problem of a supersonic flow of a Bose-Einstein condensate past an obstacle. The asymptotic connections with the corresponding periodic solutions of the Korteweg-de Vries and nonlinear Schrödinger equations are studied and typical spatial wave distributions are discussed.

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