title: Nonequilibrium zero-bias anomaly in disordered metals.
abstract: We extend the theory of a zero-bias anomaly (ZBA) in the tunneling density of states of a diffusive metallic film to out-of-equilibrium conditions. An effective action describing virtual fluctuations out of equilibrium is derived. The singular behavior of the equilibrium ZBA is smoothed out by real processes of inelastic scattering.
authors: Department of Physics, University of Florida, Gainesville, Florida 32611, USA.
authors: D B
authors: DB
authors: Gutman
authors: Yuval
authors: Y
authors: Gefen
authors: A D
authors: AD
authors: Mirlin