Superfluid Transition Temperature in a Fermi Gas with Repulsion. Higher Orders Perturbation Theory Corrections.

摘要: High order perturbation theory corrections to the superfluid transition temperature in a weakly interacting Fermi gas with repulsive interaction are calculated. This involves calculating contributions of third and fourth diagrams parameter apF taking into account effects retardation. The from both second, orders result effective attraction p-wave channel. It is shown that critical mainly determined by second terms theory. dependence on an external magnetic field found. We discuss possible applications results diluted 3 He- 4 He mixtures trapped neutral-atom gases.