Comment on "Density and Spin response of a strongly-interacting Fermi gas in the attractive and quasi-repulsive regime"

Abstract

This is a comment on Phys. Rev. Lett. 108, 080401 (2012) by Palestini et al. We pointed out that the diagrammatic method in that article violates gauge invariance. As a consequence, there will a Meissner effect in the normal phase and the contribution from collective modes are not mentioned in the symmetry-broken phase.

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References in corpus (5)

• Density and spin response of a strongly-interacting Fermi gas in the attractive and quasi-repulsive regime
• Microscopic Approach to Shear Viscosities in Superfluid Gases: From BCS to BEC
• Perfect Fluids and Bad Metals: Transport Analogies Between Ultracold Fermi Gases and High $T_c$ Superconductors
• Popov approximation for composite bosons in the BCS-BEC crossover
• Conductivity in Pseudogapped Superconductors: The Role of the Fermi Arcs

Cited by in corpus (2)

• Fundamental Constraints on Linear Response Theories of Fermi Superfluids Above and Below $T_c$
• Density and Spin Linear Response of Atomic Fermi Superfluids with Population Imbalance in BCS-BEC Crossover