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Frequency scales for current statistics of mesoscopic conductors

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Published in Physical Review Letters. 2004, vol. 92, no. 17, p. 176804
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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PMID: 15169180
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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. https://archive-ouverte.unige.ch/unige:4198

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Deposited on : 2009-11-30

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