Аннотация

The derivation is considered of a kinetic equation that describes the asymmetry of the electranlike and holelike excitations in a superconductor having a large concentration of nonmagnetic impurities. Besides the electron-phonon interaction, the alternating field is considered as a source of additional relaxation of the electron-hole unbalance. The dependence of the shift of the chemical potential and of the energy gap on the temperature and on the injection voltage is obtained at temperatures that are low compared with the critical value.