Equilibrium Properties of a Trapped Dipolar Fermion at Finite Temperatures

TL;DR

This paper investigates the equilibrium behavior of a trapped dipolar Fermi gas at finite temperatures, focusing on how dipole interactions cause deformations in real and momentum space and analyzing stability across various parameters.

Contribution

It introduces a variational ansatz for phase-space distribution that captures deformations in both real and momentum space, advancing understanding of dipolar Fermi gases at finite temperatures.

Findings

Deformation in momentum space due to dipole interactions.

System stability depends on temperature, trap aspect ratio, and dipole moment.

High-temperature regime reveals observable deformations.

Abstract

We study the equilibrium properties of a dipolar Fermi gas at finite temperatures. We introduce a variational ansatz for the phase-space distribution function that can describe the deformation in both real and momentum space. The effect of dipole--dipole interactions on the thermal equilibrium is discussed with particular emphasis on the deformation in momentum space. We examine the stability of the system by varying the temperature, trap aspect ratio, and the dipole moment. In addition, we discuss how the deformation in both real and momentum space can be observed in the high-temperature regime.