title: Quantum phases of a two-dimensional dipolar fermi gas.
abstract: We examine the superfluid and collapse instabilities of a quasi-two-dimensional gas of dipolar fermions aligned by an orientable external field. It is shown that the interplay between the anisotropy of the dipole-dipole interaction, the geometry of the system, and the p-wave symmetry of the superfluid order parameter means that the effective interaction for pairing can be made very large without the system collapsing. This leads to a broad region in the phase diagram where the system forms a stable superfluid. Analyzing the superfluid transition at finite temperatures, we calculate the Berezinskii-Kosterlitz-Thouless temperature as a function of the dipole angle.
authors.affiliation: CNR-INFM BEC Center, Università di Trento, I-38050 Povo, Trento, Italy.
authors.forename: G M
authors.initials: GM
authors.lastname: Bruun
authors.forename: E
authors.initials: E
authors.lastname: Taylor