Vortex-core structure in neutral fermion superfluids with population imbalance

M. Takahashi, T. Mizushima, M. Ichioka, K. Machida

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)

    Abstract

    Quantized vortex-core structure is theoretically investigated in fermion superfluids with population imbalance for two atom species of neutral atom clouds near a Feshbach resonance. In contrast with the vortex core in balance case where the quantum depletion makes a vortex visible through the density profile measurement, the vortex core is filled in and becomes less visible because the quantized discrete bound states are occupied exclusively by the majority species. Yet it is shown that the core can be visible through the minority density profile experiment using phase contrast imaging, revealing an interesting opportunity to examine low-lying fermionic core bound states unexplored so far.

    Original languageEnglish
    Article number180407
    JournalPhysical Review Letters
    Volume97
    Issue number18
    DOIs
    Publication statusPublished - 2006

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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