Generic Phase Diagram of Fermion Superfluids with Population Imbalance

K. Machida, T. Mizushima, and M. Ichioka
Phys. Rev. Lett. 97, 120407 – Published 21 September 2006

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 T0. 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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 8 April 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.120407

©2006 American Physical Society

Authors & Affiliations

K. Machida, T. Mizushima, and M. Ichioka

  • Department of Physics, Okayama University, Okayama 700-8530, Japan

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 12 — 22 September 2006

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×