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Mathematics > Numerical Analysis

Title: Numerical study of the Gross-Pitaevskii equation on a two-dimensional ring and vortex nucleation

Authors: Quentin Chauleur (PhLAM, Paradyse), Radu Chicireanu (PhLAM), Guillaume Dujardin (Paradyse, LPP), Jean-Claude Garreau (PhLAM), Adam Rançon (PhLAM)
Abstract: We consider the Gross-Pitaevskii equation with a confining ring potential with a Gaussian profile. By introducing a rotating sinusoidal perturbation, we numerically highlight the nucleation of quantum vortices in a particular regime throughout the dynamics. Numerical computations are made via a Strang splitting time integration and a two-point flux approximation Finite Volume scheme based on a particular admissible triangulation. We also develop numerical algorithms for vortex tracking adapted to our finite volume framework.
Subjects: Numerical Analysis (math.NA); Quantum Gases (cond-mat.quant-gas); Computational Physics (physics.comp-ph)
Cite as: arXiv:2404.10360 [math.NA]
  (or arXiv:2404.10360v1 [math.NA] for this version)

Submission history

From: Quentin Chauleur [view email]
[v1] Tue, 16 Apr 2024 07:50:28 GMT (6151kb,D)

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