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The European Physical Journal B

, Volume 68, Issue 3, pp 383–389 | Cite as

Superfluidity near phase separation in Bose-Fermi mixtures

  • T. EnssEmail author
  • W. Zwerger
Article

Abstract

We study the transition to fermion pair superfluidity in a mixture of interacting bosonic and fermionic atoms. The fermion interaction induced by the bosons and the dynamical screening of the condensate phonons due to fermions are included using the nonperturbative Hamiltonian flow equations. We determine the bosonic spectrum near the transition towards phase separation and find that the superfluid transition temperature may be increased substantially due to phonon damping.

PACS

67.85.De Dynamic properties of condensates; excitations, and superfluid flow 67.85.Fg Multicomponent condensates; spinor condensates 67.85.Pq Mixtures of Bose and Fermi gases 74.20.Fg BCS theory and its development 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Physik DepartmentTechnische Universität MünchenGarchingGermany

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