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arXiv:1602.05634 · Physical Review A

Effect of anisotropic exchange interactions and short-range phenomena on superfluidity in a homogeneous dipolar Fermi gas

I. Corro, A. Martin

Published Aug 2, 2016• 1 citation
arXivHTMLPDF

Abstract

We develop a simple numerical method that allows us to calculate the BCS superfluid transition temperature ${T}_{c}$ precisely for any interaction potential. We apply it to a polarized, ultracold Fermi gas with long-range, anisotropic, dipolar interactions and include the effects of anisotropic exchange interactions. We pay particular attention to the short-range behavior of dipolar gases and reexamine current renormalization methods. In particular, we find that dimerization of both atoms and molecules significantly hampers the formation of a superfluid. The end result is that at high density or interaction strengths, we find ${T}_{c}$ is orders of magnitude lower than previous calculations.

DOI
10.1103/physreva.94.023603

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