Zero--Bias Anomaly in Finite Size Systems

Alex Kamenev; Yuval Gefen

doi:10.1103/physrevb.54.5428

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arXiv · cond-mat/9602015

Zero--Bias Anomaly in Finite Size Systems

Alex Kamenev·Yuval Gefen

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Abstract

The small energy anomaly in the single particle density of states of disordered interacting systems is studied for the zero dimensional case. This anomaly interpolates between the non--perturbative Coulomb blockade and the perturbative limit, the latter being an extension of the Altshuler--Aronov zero bias anomaly at d=0. Coupling of the zero dimensional system to a dissipative environment leads to an effective screening of the interaction and a modification of the density of states.

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Alex Kamenev, Yuval Gefen. 1996-02-04. Zero--Bias Anomaly in Finite Size Systems. https://doi.org/10.1103/physrevb.54.5428

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