Temporal fluctuation induced order in conventional superconductors

Abstract

Communal pairing in superconductors introduces variational freedom for Cooper pairs to share fermions. Temporal oscillations of the superconducting gap entropically drive communal pairing through the order by disorder phenomenology, stabilising a finite momentum space width of the superconducting gap that increases with interaction strength, creating a smooth evolution from the weakly interacting BCS state to the strongly interacting BEC state.

References in corpus (8)

• Homogeneous Atomic Fermi Gases
• Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
• Spectral response and contact of the unitary Fermi gas
• Superconductivity in the elements, alloys and simple compounds
• Conventional superconductivity in quasicrystals
• Total control over ultracold interactions via electric and magnetic fields
• Effective-range dependence of two-dimensional Fermi gases
• Diffusion Monte Carlo study of a spin-imbalanced two-dimensional Fermi gas with attractive interactions