Larkin-Ovchinnikov state in resonant Fermi gas

TL;DR

This paper explores the phase diagram of a population-imbalanced Fermi gas near a Feshbach resonance, demonstrating that the Larkin-Ovchinnikov phase is more stable and extends over a larger parameter space than previously thought.

Contribution

It provides a detailed analysis of the stability and extent of the Larkin-Ovchinnikov phase in a resonant Fermi gas with population imbalance.

Findings

Larkin-Ovchinnikov phase is stable over a larger parameter range.

The phase diagram of imbalanced Fermi gases is mapped out.

Enhanced stability of the LO phase compared to previous studies.

Abstract

We construct the phase diagram of a homogeneous two component Fermi gas with population imbalance under a Feshbach resonance. In particular, we study the physics and stability of the Larkin-Ovchinnikov phase. We show that this phase is stable over a much larger parameter range than what has been previously reported by other authors.