Symmetry breaking of vortex patterns in a rotating harmonic potential

Hidetsugu Sakaguchi, Hironobu Takeshita

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    Abstract

    We numerically study the symmetry breaking instabilities of vortex patterns in a rotating harmonic potential using a type of Ginzburg-Landau equation. The configurations of vortex lattices change markedly by the symmetry-breaking instabilities, and then, some vortices move away from the confinement potential, which leads to the annihilation of vortices. The symmetry-breaking instabilities and the instabilities of vortex nucleation determine the parameter region of stable vortex patterns. We verify that the symmetry-breaking instabilities also occur in a type of complex Ginzburg-Landau equation.

    Original languageEnglish
    Article number054003
    Journaljournal of the physical society of japan
    Volume77
    Issue number5
    DOIs
    Publication statusPublished - May 1 2008

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    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

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