Superfluid transition in quasi-two-dimensional disordered dipolar Fermi gases

Abstract

We investigate the effect of weak disorder on the superfluid properties of two-component quasi-two-dimensional dipolar Fermi gases. The dipole-dipole interaction amplitude is momentum dependent, which violates the Anderson theorem claiming that the weak disorder has practically no influence on the superfluid transition temperature in the weakly interacting regime. We find that for dipolar fermions the transition temperature in this regime can be strongly increased by the disorder like in the purely two-dimensional case. However, the effect becomes smaller with increasing the intercomponent fermion-fermion interaction, and in the strongly interacting regime the superfluid transition temperature in the weak disorder becomes very close to that in the absence of disorder.

References in corpus (14)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Quantum degenerate dipolar Fermi gas
• Disordered quantum gases under control
• Fractal superconductivity near localization threshold
• Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
• Enhancement of superconductivity by Anderson localization
• Ground-state pressure of quasi-2D Fermi and Bose gases
• Observation of Fermi surface deformation in a dipolar quantum gas
• Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms
• Diffusion Monte Carlo study of strongly interacting two-dimensional Fermi gases
• Systematic investigation of the effects of disorder at the lowest order throughout the BCS-BEC crossover
• Multifractally-enhanced superconductivity in thin films
• Superfluid transition in disordered dipolar Fermi gases