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Transverse Evolution Operator for the Gross-Pitaevskii Equation in Semiclassical Approximation

By Alexey Borisov, Alexander Shapovalov and Andrey Trifonov


The Gross-Pitaevskii equation with a local cubic nonlinearity that describes a many-dimensional system in an external field is considered in the framework of the complex WKB-Maslov method. Analytic asymptotic solutions are constructed in semiclassical approximation in a small parameter h, h o 0, in the class of functions concentrated in the neighborhood of an unclosed surface associated with the phase curve that describes the evolution of surface vertex. The functions of this class are of the one-soliton form along the direction of the surface normal. The general constructions are illustrated by examples

Topics: WKB-Maslov complex germ method, semiclassical asymptotics, Gross-Pitaevskii equation, solitons, symmetry operators, Mathematics, QA1-939, Science, Q, DOAJ:Mathematics, DOAJ:Mathematics and Statistics
Publisher: National Academy of Science of Ukraine
Year: 2005
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