Abstract
We consider a gas of fermions interacting via an attractive potential. We study the ground state of that system and calculate the critical temperature for the onset of superconductivity as a function of the coupling strength. We compare the behavior of continuum and lattice models and show that the evolution from weak to strong coupling superconductivity is smooth.
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Nozières, P., Schmitt-Rink, S. Bose condensation in an attractive fermion gas: From weak to strong coupling superconductivity. J Low Temp Phys 59, 195–211 (1985). https://doi.org/10.1007/BF00683774
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DOI: https://doi.org/10.1007/BF00683774