Open AccessVortex of an anomalous mode in Fermi gas near unitarity limit
Author(s) -
Yu Zhou,
Qingchun Zhou,
Xuekai Ma
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.140301
Subject(s) - unitarity , physics , vortex , limit (mathematics) , superfluidity , fermi gas , fermi gamma ray space telescope , rotational symmetry , long wavelength limit , quantum electrodynamics , condensed matter physics , quantum mechanics , mechanics , electron , mathematical analysis , mathematics
We investigate the dynamics of a quantized vortex in a trapped superfluid Fermi gas near the unitarity limit. By taking a trial wave function for the order-parameter of a condensate in a rotating axisymmetric trap confinement and using a time-dependent variational analysis we obtain the equations of motion and their solutions for anomalous mode. The results show that the critical rotating frequency of the trap increases when the system ranges from the left to the right side of the unitarity limit, while the period of the vortex decreases in this regime.