Ranninger, J , ROBIN, J M and Eschrig, Matthias (1995) Superfluid Precursor Effects in a Model of Hybridized Bosons and Fermions. Physical Review Letters, 74 (20).
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We examine how a superfluid state is approached in a system of localizedbosons (tightly bound electron pairs) in contact with a reservoir of itinerantfermions (electrons). Assuming spontaneous decay and recombination betweenthese two species, the initially localized states of the bosons change overinto free-particle–like propagating statesas the temperature is lowered and the superfluid transition at Tc is approached. Concomitantly a pseudogap opens up in the fermionic density of states which deepens with decreasing temperature.
This is a Submitted version This version's date is: 15/5/1995 This item is not peer reviewed
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