title: Vortices in trapped superfluid fermi gases.
abstract: We consider a superfluid of trapped fermionic atoms and study the single vortex solution in the Ginzburg-Landau regime. We define simple analytical estimates for the main characteristics of the system, such as the vortex core size, temperature regimes for the existence of a vortex, and the effects of rotation and interactions with normal fermions. The parameter dependence of the vortex core size (healing length) is found to be essentially different from that of the healing length in metallic superconductors or in trapped atomic Bose-Einstein condensation in the Thomas-Fermi limit. This is an indication of the importance of the confining geometry for the properties of fermionic superfluids.
authors.affiliation: Laboratory of Computational Engineering, P.O. Box 9400, FIN-02015 Helsinki University of Technology, Finland.
authors.forename: M
authors.initials: M
authors.lastname: Rodriguez
authors.forename: G S
authors.initials: GS
authors.lastname: Paraoanu
authors.forename: P
authors.initials: P
authors.lastname: Törmä