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)


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
Issue number18
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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