Superfluid transition temperature of spin-orbit and Rabi coupled fermions with tunable interactions

Philip D Powell; Gordon Baym; C. A. R. Sa de Melo

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arXiv · 1709.07042

Superfluid transition temperature of spin-orbit and Rabi coupled fermions with tunable interactions

Philip D Powell·Gordon Baym·C. A. R. Sa de Melo

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Abstract

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in three dimensions. Spin-orbit coupling enhances the critical temperature in the BEC limit, and can convert a first order phase transition in the presence of Rabi coupling into second order, as a function of the Rabi coupling for fixed interactions. We derive the Ginzburg-Landau equation to sixth power in the superfluid order parameter to describe both first and second order transitions as a function of spin-orbit and Rabi couplings.

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Philip D Powell, Gordon Baym, C. A. R. Sa de Melo. 2017-09-20. Superfluid transition temperature of spin-orbit and Rabi coupled fermions with tunable interactions. https://arxiv.org/abs/1709.07042

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