Bose condensation in an attractive fermion gas: From weak to strong coupling superconductivity
@article{Nozires1985BoseCI, title={Bose condensation in an attractive fermion gas: From weak to strong coupling superconductivity}, author={Philippe Nozi{\`e}res and Stephan Schmitt-Rink}, journal={Journal of Low Temperature Physics}, year={1985}, volume={59}, pages={195-211} }
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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