Feasibility of high-temperature superconductivity in nonequilibrium systems with repulsion
Galitskii V.M. , Elesin V.F., Kopaev Yu. V.
We examine the feasibility of obtaining high-temperature superconductivity in nonequilibrium systems with repulsion between the electrons. We show that in a metal containing a source that transfers electrons with energies lower than the Fermi energy to a state with higher energy it is possible to obtain, besides the trivial solution with zero gap, also a new solution with nonzero superconducting gap and inverted electron distribution.