Density profile of a polarized unitary Fermi gas

TL;DR

This paper provides a theoretical analysis of the density distribution in a polarized, strongly interacting Fermi gas, assuming a phase transition, and aligns well with recent experimental observations.

Contribution

It introduces a model assuming a first order phase transition to explain the density profiles in polarized Fermi gases, matching experimental data.

Findings

Good agreement with experimental density profiles

Supports the existence of a first order phase transition

Provides insights into phase separation in polarized Fermi gases

Abstract

We present a theoretical study of the density profile of a trapped strongly interacting Fermi gas with unbalanced spin populations. Making the assumption of the existence of a first order phase transition between an unpolarized superfluid phase and a fully polarized normal phase, we show good agreement with a recent experiment presented in Partridge et al.