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Frequency Scales for Current Statistics of Mesoscopic Conductors

K. E. Nagaev·S. Pilgram·M. Buttiker
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Abstract

We calculate the third cumulant of current in a chaotic cavity with contacts of arbitrary transparency as a function of frequency. Its frequency dependence drastically differs from that of the conventional noise. In addition to a dispersion at the inverse RC time characteristic of charge relaxation, it has a low-frequency dispersion at the inverse dwell time of electrons in the cavity. This effect is suppressed if both contacts have either large or small transparencies.

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K. E. Nagaev, S. Pilgram, M. Buttiker. 2003-06-18. Frequency Scales for Current Statistics of Mesoscopic Conductors. https://doi.org/10.1103/physrevlett.92.176804

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