Trapped Resonant Fermions above Superfluid Transition Temperature

TL;DR

This paper studies trapped resonant fermions with unequal populations above the superfluid transition, exploring how interactions affect density profiles and relationships within the local density approximation.

Contribution

It provides a detailed analysis of density profiles and relationships in resonant fermions, extending understanding above the superfluid transition temperature.

Findings

Density profiles match experimental observations

Relationships between local density, axial density, and pressure are clarified

System transitions from weakly to strongly interacting regimes

Abstract

We investigate trapped resonant fermions with unequal populations within the local density approximation above the superfluid transition temperature. By tuning the attractive interaction between fermions via Feshbach resonance, the system evolves from weakly interacting fermi gas to strongly interacting fermi gas, and finally becomes bose-fermi mixture. The density profiles of fermions are examined and compared with experiments. We also point out the simple relationships between the local density, the axial density, and the gas pressure within the local density approximation.