2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23728We discuss the transition of fermion systems to a condensate of Bose dimers, when the interaction is varied by use of a Feshbach resonance. We argue that there is an intermediate phase between the superfluid Fermi gas and the Bose condensate of molecules, consisting of extended dimers.4 pagesStatistical MechanicsSuperconductivitytext