Two-instanton approximation to the Coulomb blockade problem

I. S. Burmistrov

doi:10.1063/1.4974188

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arXiv · 1607.04051

Two-instanton approximation to the Coulomb blockade problem

I. S. Burmistrov

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Abstract

We develop the two-instanton approximation to the current-voltage characteristic of a single electron transistor within the Ambegaokar-Eckern-Sch\"on model. We determine the temperature and gate voltage dependence of the Coulomb blockade oscillations of the conductance and the effective charge. We find that a small (in comparison with the charging energy) bias voltage leads to significant suppression of the Coulomb blockade oscillations and to appearance of the bias-dependent phase shift.

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I. S. Burmistrov. 2016-07-14. Two-instanton approximation to the Coulomb blockade problem. https://doi.org/10.1063/1.4974188

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