  In disordered superconductors, the local pairing field fluctuates in space,
leading to the smearing of the BCS peak in the density of states and appearance
of the subgap tail states. We analyze the universal mesoscopic contributions to
these effects and show that they are enhanced by the Coulomb repulsion. In the
vicinity of the quantum critical point, where superconductivity is suppressed
by the "fermionic mechanism", strong smearing of the peak due to mesoscopic
fluctuations is predicted.

Superconductivity;Disordered Systems and Neural Networks