Vortex interaction and the two-dimensional dark soliton

T. Higashiuchi, H. Sakaguchi

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)


    We study vortex interaction and a two-dimensional dark soliton in the two-dimensional Gross-Pitaevskii equation. A vortex-antivortex pair propagates with a constant velocity when the initial distance is large. But complicated behaviors appear when the initial distance of two vortices becomes smaller. If the initial distance is sufficiently small, a two-dimensional dark solution is created as a result of the pair annihilation. The two-dimensional dark soliton has an anisotropic structure and propagates in a certain direction. The two-dimensional dark soliton is stable against head-on collision.

    Original languageEnglish
    Pages (from-to)221-225
    Number of pages5
    JournalLaser Physics
    Issue number2
    Publication statusPublished - Feb 2007

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics
    • Instrumentation
    • Condensed Matter Physics
    • Industrial and Manufacturing Engineering


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