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Fine structure in the off-resonance conductance of small Coulomb blockade systems

J. J. Palacios·Lerwen Liu·D. Yoshioka
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Abstract

We show how a fine, multiple-peak structure can arise in the off-resonance, zero-bias conductance of Coulomb blockade systems. In order to understand how this effect comes about one must abandon the orthodox, mean-field understanding of the Coulomb blockade phenomenon and consider quantum fluctuations in the occupation of the single-particle electronic levels. We illustrate such an effect with a spinless Anderson-like model for multi-level systems and an equation-of-motion method for calculating Green's functions that combines two simple decoupling schemes.

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J. J. Palacios, Lerwen Liu, D. Yoshioka. 1997-02-21. Fine structure in the off-resonance conductance of small Coulomb blockade systems. https://doi.org/10.1103/physrevb.55.15735

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