Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas

Abstract

We investigate the thermodynamic properties of a superfluid Fermi gas subject to Rashba spin-orbit coupling and effective Zeeman field. We adopt a T-matrix scheme that takes beyond-mean-field effects, which are important for strongly interacting systems, into account. We focus on the calculation of two important quantities: the superfluid transition temperature and the isothermal compressibility. Our calculation shows very distinct influences of the out-of-plane and the in-plane Zeeman fields on the Fermi gas. We also confirm that the in-plane Zeeman field induces a Fulde-Ferrell superfluid below the critical temperature and an exotic finite-momentum pseudo-gap phase above the critical temperature.

8 pages, 9 figures

References in corpus (9)

• Theory of ultracold Fermi gases
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• $p_x+i{p}_y$ superfluid from s-wave interactions of fermionic cold atoms
• Quantum Computation Using Vortices and Majorana Zero Modes of a $p_x$ + $i{p}_y$ Superfluid of Fermionic Cold Atoms
• Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields
• Pseudo-gap pairing in ultracold Fermi atoms
• Finite-Momentum Dimer Bound State in Spin-Orbit Coupled Fermi Gas
• Radio-frequency spectroscopy of weakly bound molecules in spin-orbit coupled atomic Fermi gases

Cited by in corpus (4)

• Quantum Geometric Contributions to the BKT Transition: Beyond Mean Field Theory
• Topological Fulde-Ferrell Superfluids of a Spin-Orbit Coupled Fermi Gas
• Three-dimensional spin-orbit coupled Fermi gases: Fulde-Ferrell pairing, Majorana fermions, Weyl fermions and gapless topological superfluidity
• Signatures of topological phase transitions in the s-wave superconductor at finite temperature