Abstract
We consider quantum deformation of a strong-coupling superconductivity model based on creation/annihilation operators which satisfy generalized commutator relations. It is found that the nature of the superconducting phase transition can be changed from the usual second-order to a first-order transition, if the deformation parameter exceeds a certain critical value. Metastable normal and superconducting states can exist when the transition is of the first order.
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