Universal scaling in nonequilibrium transport through an Anderson impurity release_qvercfupyvhmxoelgrxai6qyhu

by Julian Rincon, A. A. Aligia and K. Hallberg (Centro Atomico Bariloche and Instituto Balseiro, Argentina)

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2009  

Abstract

Using non-equilibrium renormalized perturbation theory, we calculate the conductance G as a function of temperature T and bias voltage V for an Anderson model, suitable for describing transport properties through a quantum dot. For renormalized parameters that correspond to the extreme Kondo limit, we do not find a simple scaling formula beyond a quadratic dependence in T and V. However, if valence fluctuations are allowed, we find agreement with recent experiments.
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Date   2009-09-30
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arXiv  0901.4326v4
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