Density and spin response functions in ultracold fermionic gases

ORAL

Abstract

We study the two-body correlation functions in a two-component ultracold fermionic gas governed by an attractive short-range interaction. Based on a zero-temperature mean-field analysis we suggest that considerable insight in the properties of the ground-state can be gained by measuring the density and spin response functions, and predict differences between the properties of a $^{40}$K ultracold fermionic gas and the properties of a $^6$Li ultracold fermionic gas.

–

Authors

  • Bogdan Mihaila

    Los Alamos National Laboratory, LANL

  • Sergio Gaudio

    LANL, Boston College

  • Krastan Blagoev

    LANL

  • Alexander Balatsky

    LANL, Los Alamos National Laboratory, Los Alamos Natinoal Laboratory

  • Peter Littlewood

    Cambridge University, University of Cambridge, Cavendish Laboratory, TCM, University of Cambridge, Cambridge University, UK

  • Darryl Smith

    LANL, Los Alamos National Laboratory