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 language | English |
|---|---|
| Article number | 023621 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 74 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 |
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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 journal › Article
}
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
VL - 74
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 2
M1 - 023621
ER -