BCS ansatz, Bogoliubov approach to superconductivity and Richardson-Gaudin exact wave function

@inproceedings{Combescot2011BCSAB,
  title={BCS ansatz, Bogoliubov approach to superconductivity and Richardson-Gaudin exact wave function},
  author={Monique Combescot and W. V. Pogosov and O. Betbeder-matibet},
  year={2011}
}
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Strongly bound fermion pairs on a ring: A composite-boson approach
Particles made of two fermions can in many cases be treated as elementary bosons, but the conditions for this treatment to be valid are nontrivial. The so-called “coboson formalism” is a powerful…