Structure of a quantized vortex near the BCS-BEC crossover in an atomic fermi gas

M. Machida, Tomio Koyama

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

In order to clarify the structure of a singly quantized vortex in a superfluid fermion gas near the Feshbach resonance, we numerically solve the generalized Bogoliubov-de Gennes equation in the boson-fermion model. The superfluid gap, which contains contributions from both condensed fermion pairs and condensed bosons, is self-consistently determined, and the quasiparticle excitation levels bound in the vortex core are explicitly shown. We find that the boson condensate contributes to enhance the matter density depletion and the discreteness of localized quasiparticle spectrum inside the core. It is predicted that the matter density depletion and the discrete core levels are detectable in the vicinity of the BCS-Bose-Einstein condensation crossover point.

Original languageEnglish
Article number140401
JournalPhysical Review Letters
Volume94
Issue number14
DOIs
Publication statusPublished - 2005 Apr 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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