Microscopic structure of a quantized vortex core in atomic Fermi gases

M. Machida, Yoji Ohashi, T. Koyama

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In order to understand what kind of information can be extracted from the vortex-core structure in superfluid fermion-atom gases we make a systematic study for the core structure of a singly quantized vortex in the range of broad Feshbach resonance, solving numerically the generalized Bogoliubov-de Gennes equation derived from the fermion-boson model. Numerical calculations reveal that the vortex core can be well characterized by three length scales from the spatial variation of the fermionic and bosonic gap functions. We also predict that the profile of matter depletion and the quasiparticle spectrum show distinctive differences between the BCS and Bose-Einstein Condensate regimes.

Original languageEnglish
Article number023621
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume74
Issue number2
DOIs
Publication statusPublished - 2006

Fingerprint

vortices
fermions
gases
Bose-Einstein condensates
depletion
bosons
profiles
atoms

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Microscopic structure of a quantized vortex core in atomic Fermi gases. / Machida, M.; Ohashi, Yoji; Koyama, T.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 74, No. 2, 023621, 2006.

Research output: Contribution to journalArticle

@article{b81ec81ffd0045cfa8aa0b1ca4d5d77b,
title = "Microscopic structure of a quantized vortex core in atomic Fermi gases",
abstract = "In order to understand what kind of information can be extracted from the vortex-core structure in superfluid fermion-atom gases we make a systematic study for the core structure of a singly quantized vortex in the range of broad Feshbach resonance, solving numerically the generalized Bogoliubov-de Gennes equation derived from the fermion-boson model. Numerical calculations reveal that the vortex core can be well characterized by three length scales from the spatial variation of the fermionic and bosonic gap functions. We also predict that the profile of matter depletion and the quasiparticle spectrum show distinctive differences between the BCS and Bose-Einstein Condensate regimes.",
author = "M. Machida and Yoji Ohashi and T. Koyama",
year = "2006",
doi = "10.1103/PhysRevA.74.023621",
language = "English",
volume = "74",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Microscopic structure of a quantized vortex core in atomic Fermi gases

AU - Machida, M.

AU - Ohashi, Yoji

AU - Koyama, T.

PY - 2006

Y1 - 2006

N2 - In order to understand what kind of information can be extracted from the vortex-core structure in superfluid fermion-atom gases we make a systematic study for the core structure of a singly quantized vortex in the range of broad Feshbach resonance, solving numerically the generalized Bogoliubov-de Gennes equation derived from the fermion-boson model. Numerical calculations reveal that the vortex core can be well characterized by three length scales from the spatial variation of the fermionic and bosonic gap functions. We also predict that the profile of matter depletion and the quasiparticle spectrum show distinctive differences between the BCS and Bose-Einstein Condensate regimes.

AB - In order to understand what kind of information can be extracted from the vortex-core structure in superfluid fermion-atom gases we make a systematic study for the core structure of a singly quantized vortex in the range of broad Feshbach resonance, solving numerically the generalized Bogoliubov-de Gennes equation derived from the fermion-boson model. Numerical calculations reveal that the vortex core can be well characterized by three length scales from the spatial variation of the fermionic and bosonic gap functions. We also predict that the profile of matter depletion and the quasiparticle spectrum show distinctive differences between the BCS and Bose-Einstein Condensate regimes.

UR - http://www.scopus.com/inward/record.url?scp=33747795247&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33747795247&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.74.023621

DO - 10.1103/PhysRevA.74.023621

M3 - Article

AN - SCOPUS:33747795247

VL - 74

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 2

M1 - 023621

ER -