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arXiv · 0704.0728

Zero bias anomaly out of equilibrium

D. B. Gutman·Yuval Gefen·A. D. Mirlin
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Abstract

The non-equilibrium zero bias anomaly (ZBA) in the tunneling density of states of a diffusive metallic film is studied. 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.

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D. B. Gutman, Yuval Gefen, A. D. Mirlin. 2007-04-05. Zero bias anomaly out of equilibrium. https://doi.org/10.1103/physrevlett.100.086801

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