Induced Interactions for Ultracold Fermi Gases in Optical Lattices

D. H. Kim*, P. Törmä, J. P. Martikainen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)
285 Downloads (Pure)

Abstract

We investigate the effect of optical lattices on the BCS superfluidity by using the Gorkov-Melik-Barkhudarov (GMB) correction for a two-component Fermi gas. We find that the suppression of the order parameter is strongly enhanced by the lattice effects. The predictions made by the GMB corrections are in qualitative and, for the cases studied, quantitative agreement with previous quantum Monte Carlo results. We discuss how the GMB correction extends the validity of the mean-field theory to a wider range of tunable optical lattice systems in different dimensions.

Original languageEnglish
Article number245301
Pages (from-to)1-4
Number of pages4
JournalPhysical Review Letters
Volume102
Issue number24
DOIs
Publication statusPublished - 16 Jun 2009
MoE publication typeA1 Journal article-refereed

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