TY - JOUR
T1 - Vortex microscopic structure in BCS to BEC Fermi superfluids
AU - Machida, Masahiko
AU - Koyama, Tomio
AU - Ohashi, Yoji
PY - 2007/9/1
Y1 - 2007/9/1
N2 - In order to examine how the vortex core changes its structure when approaching BEC from BCS regime in superfluid fermion-atom gasses we make a systematic numerical study for the core structure of a singly quantized vortex, 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 two length scales based on the spatial variation of the fermionic gap functions and those scales show distinctive differences between the BCS and BEC regimes.
AB - In order to examine how the vortex core changes its structure when approaching BEC from BCS regime in superfluid fermion-atom gasses we make a systematic numerical study for the core structure of a singly quantized vortex, 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 two length scales based on the spatial variation of the fermionic gap functions and those scales show distinctive differences between the BCS and BEC regimes.
KW - Atomic Fermi gas
KW - Bogoliubov-de Gennes equation
KW - Vortex core
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U2 - 10.1016/j.physc.2007.03.431
DO - 10.1016/j.physc.2007.03.431
M3 - Article
AN - SCOPUS:34548257295
SN - 0921-4534
VL - 460-462 I
SP - 275
EP - 276
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - SPEC. ISS.
ER -