Strongly Interacting Fermi Gases with Density Imbalance

J. Kinnunen, L. M. Jensen, and P. Törmä
Phys. Rev. Lett. 96, 110403 – Published 22 March 2006

Abstract

We consider density-imbalanced Fermi gases of atoms in the strongly interacting, i.e., unitarity, regime. The Bogoliubov–de Gennes equations for a trapped superfluid are solved. They take into account the finite size of the system, as well as give rise to both phase separation and Fulde-Ferrel-Larkin-Ovchinnikov-type oscillations in the order parameter. We show how radio-frequency spectroscopy reflects the phase separation, and can provide direct evidence of the FFLO-type oscillations via observing the nodes of the order parameter.

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  • Received 21 December 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.110403

©2006 American Physical Society

Authors & Affiliations

J. Kinnunen, L. M. Jensen, and P. Törmä

  • Nanoscience Center, Department of Physics, P.O. Box 35, FIN-40014, University of Jyväskylä, Finland

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Issue

Vol. 96, Iss. 11 — 24 March 2006

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