Temperature dependent third cumulant of tunneling noise

Poisson statistics predicts that the shot noise in a tunnel junction has a temperature independent third cumulant e^2\I, determined solely by the mean current I. Experimental data, however, show a puzzling temperature dependence. We demonstrate theoretically that the third cumulant becomes strongly...

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Published in:arXiv.org 2003-01
Main Authors: Beenakker, C W J, Kindermann, M, Nazarov, Yu V
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Language:English
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Noise prediction
Shot noise
Temperature
Temperature dependence
Tunnel junctions
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Kindermann, M
Nazarov, Yu V
description Poisson statistics predicts that the shot noise in a tunnel junction has a temperature independent third cumulant e^2\I, determined solely by the mean current I. Experimental data, however, show a puzzling temperature dependence. We demonstrate theoretically that the third cumulant becomes strongly temperature dependent and may even change sign as a result of feedback from the electromagnetic environment. In the limit of a noninvasive (zero-impedance) measurement circuit in thermal equilibrium with the junction, we find that the third cumulant crosses over from e^2/I at low temperatures to -e^2/I at high temperatures.
doi_str_mv 10.48550/arxiv.0301476
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subjects Noise prediction
Shot noise
Temperature
Temperature dependence
Tunnel junctions
title Temperature dependent third cumulant of tunneling noise
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