Frequency Scales for Current Statistics of Mesoscopic Conductors
Mesoscale and Nanoscale Physics
2009-11-10 v1
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.
Cite
@article{arxiv.cond-mat/0306465,
title = {Frequency Scales for Current Statistics of Mesoscopic Conductors},
author = {K. E. Nagaev and S. Pilgram and M. Buttiker},
journal= {arXiv preprint arXiv:cond-mat/0306465},
year = {2009}
}
Comments
4 pages