Superfluidity of trapped dipolar Fermi gases

TL;DR

This paper derives the phase diagram for ultracold trapped dipolar Fermi gases, identifying the critical dipole strength for superfluidity and revealing unique behavior of the order parameter at the transition.

Contribution

It provides the first detailed phase diagram for dipolar Fermi gases, linking trap geometry and interaction strength to superfluidity.

Findings

Superfluidity ceases below a critical dipole interaction energy.

Critical dipole strength depends on trap aspect ratio.

Order parameter shows novel behavior at criticality.

Abstract

We derive the phase diagram for ultracold trapped dipolar Fermi gases. Below the critical value of the dipole-dipole interaction energy, the BCS transition into a superfluid phase ceases to exist. The critical dipole strength is obtained as a function of the trap aspect ratio. The order parameter exhibits a novel behavior at the criticality.