Generic phase diagram of fermion superfluids with population imbalance

K. Machida, T. Mizushima, M. Ichioka

Research output: Contribution to journalArticle

99 Citations (Scopus)

Abstract

It is shown by microscopic calculations for trapped imbalanced Fermi superfluids that the gap function always has sign changes, i.e., the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)-like state, up to a critical imbalance Pc, beyond which normal state becomes stable, at temperature T=0. A temperature-versus-pressure phase diagram is constructed, where the BCS state without sign change is stable only at T 0. We reproduce the observed bimodality in the density profile to identify its origin and evaluate Pc as functions of T and the coupling strength. These dependencies match with the recent experiments.

Original languageEnglish
Article number120407
JournalPhysical Review Letters
Volume97
Issue number12
DOIs
Publication statusPublished - Sep 29 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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