Beliaev damping and Kelvin mode spectroscopy of a Bose-Einstein condensate in the presence of a vortex line

T. Mizushima, M. Ichioka, K. Machida

    Research output: Contribution to journalArticlepeer-review

    47 Citations (Scopus)

    Abstract

    The Kelvin mode as a propagation wave along a vortex line was excited via Beliaev decay processes for the counter-rotating quadrupole mode. These decay channels provided a novel spectroscopic method for low-lying Bosonic excitations in a vortex, in particular, the unexplored Kelvin mode.

    Original languageEnglish
    Article number180401
    Pages (from-to)180401/1-180401/4
    JournalPhysical Review Letters
    Volume90
    Issue number18
    Publication statusPublished - May 9 2003

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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