Characteristic length scale and energy of a vortex line in a dilute, superfluid Fermi gas
Abstract
We calculate the characteristic length scale of a vortex line in a dilute, superfluid gas of fermionic atoms, and find that it is in general smaller, and has a weaker density dependence than the BCS coherence length. Taking this into account, we find the energy of a vortex line to be larger than has previously been estimated. As a consequence, the critical frequency for formation of vortices in trapped fermion gases can be significantly larger than earlier calculations have suggested.
 Publication:

arXiv eprints
 Pub Date:
 November 2001
 arXiv:
 arXiv:condmat/0111440
 Bibcode:
 2001cond.mat.11440E
 Keywords:

 Condensed Matter  Statistical Mechanics
 EPrint:
 4 pages, 2 figures