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Superfluidity in a model of massless fermions coupled to scalar bosons

Superfluidity in a model of massless fermions coupled to scalar bosons

We study superfluidity in a model of massless fermions coupled to a massive scalar field through a Yukawa interaction. Gap equations for a condensate with total spin $J=0$ are solved in the mean-field approximation. For the Yukawa interaction, the gaps for right- and left-handed fermions are equal in magnitude and …