Chiral feedback for p-wave superconductors

In a quasi-two-dimensional p-wave superconductor we find six Cooper pairing states which are degenerate within the weak-coupling approach. We show tha t this degeneracy can be lifted by feedback effect favouring the so-called chiral p-wave state. This effect is based on the anomalous coupling between charge and current in a system with broken time reversal symmetry and pari ty.