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arXiv · 1103.4754

Current fluctuations in composite conductors: Beyond the second cumulant

A. V. Galaktionov·A. D. Zaikin
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Abstract

Employing the non-linear $\sigma$-model we analyze current fluctuations in coherent composite conductors which contain a diffusive element in-between two tunnel barriers. For such systems we explicitly evaluate the frequency-dependent third current cumulant which also determines the leading Coulomb interaction correction to shot noise. Our predictions can be directly tested in future experiments.

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A. V. Galaktionov, A. D. Zaikin. 2011-03-24. Current fluctuations in composite conductors: Beyond the second cumulant. https://doi.org/10.1103/physrevb.84.115418

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