Pairing of a trapped resonantly-interacting fermion mixture with unequal spin populations

TL;DR

This paper investigates the phase separation and density profiles of a trapped fermionic mixture with unequal spins near a Feshbach resonance, comparing theoretical predictions with recent experimental results.

Contribution

It provides a detailed analysis of density profiles in spin-imbalanced fermionic gases and compares them with experimental data, highlighting areas for further research.

Findings

Good agreement with experimental density profiles

Identification of discrepancies as open problems

Insights into phase separation in spin-imbalanced gases

Abstract

We consider the phase separation of a trapped atomic mixture of fermions with unequal spin populations near a Feshbach resonance. In particular, we determine the density profile of the two spin states and compare with the recent experiments of Partridge et al. (cond-mat/0511752). Overall we find quite good agreement. We identify the remaining discrepancies and pose them as open problems.