Existence of Vortices for Nonlinear Schrödinger Equations

In this paper, we study the existence of vortices for two kinds of nonlinear Schr\"{o}dinger equations arising from the Bose-Einstein condensates and geometric optics arguments, respectively. For the Gross-Pitaevskii equation from Bose-Einstein condensates arguments, we introduce the weighted S...

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Bibliographic Details
Published in:arXiv.org 2022-04
Main Authors: Chen, Shouxin, Su, Guange
Format: Article
Language:English
Subjects:
Bose-Einstein condensates
Boundary conditions
Coercivity
Geometrical optics
Mathematical analysis
Matter & antimatter
Schrodinger equation
Sobolev space
Variational methods
Vortices
Wave propagation
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Summary:In this paper, we study the existence of vortices for two kinds of nonlinear Schr\"{o}dinger equations arising from the Bose-Einstein condensates and geometric optics arguments, respectively. For the Gross-Pitaevskii equation from Bose-Einstein condensates arguments, we introduce the weighted Sobolev space on which the corresponding functional is coercive. By using the variational methods, we prove the existence of positive and radially symmetric solutions under different types of boundary condition. And we study another equation arising from geometric optics arguments by constrained minimization method. Furthermore some explicit estimates for the bound of the wave propagation constant are also derived.
ISSN:2331-8422