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Frequency scales for current statistics of mesoscopic conductors

Published inPhysical review letters, vol. 92, no. 17, 176804
Publication date2004
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.

Citation (ISO format)
NAGAEV, Kirill, PILGRAM, Sebastian, BUTTIKER, Markus. Frequency scales for current statistics of mesoscopic conductors. In: Physical review letters, 2004, vol. 92, n° 17, p. 176804. doi: 10.1103/PhysRevLett.92.176804
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ISSN of the journal0031-9007
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