Solitons and vortex lattices in the Gross-Pitaevskii equation with spin-orbit coupling under rotation

Hidetsugu Sakaguchi, Kanji Umeda

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    The Gross-Pitaevskii equation for two-component rotating Bose-Einstein condensates with the Rashba-type spin-orbit (SO) coupling is studied with numerical simulations and variational analyses. A multiquantum vortex state becomes a ground state in a harmonic potential when mutual interaction is absent. When the attractive interaction is strong, the multiquantum vortex state exhibits modulational instability in the azimuthal direction, and a soliton-like state appears. When the repulsive interaction is strong, a vortex lattice state with a multiquantum vortex at the center is created. We find that the vortex lattice state is approximated at a linear combination of multiquantum vortex states.

    Original languageEnglish
    Article number064402
    JournalJournal of the Physical Society of Japan
    Volume85
    Issue number6
    DOIs
    Publication statusPublished - Jun 15 2016

    Fingerprint

    solitary waves
    vortices
    orbits
    Bose-Einstein condensates
    harmonics
    ground state
    simulation
    interactions

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

    Cite this

    Solitons and vortex lattices in the Gross-Pitaevskii equation with spin-orbit coupling under rotation. / Sakaguchi, Hidetsugu; Umeda, Kanji.

    In: Journal of the Physical Society of Japan, Vol. 85, No. 6, 064402, 15.06.2016.

    Research output: Contribution to journalArticle

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