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Temperature dependent third cumulant of tunneling noise

C. W. J. Beenakker·M. Kindermann·Yu. V. Nazarov
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Abstract

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.

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C. W. J. Beenakker, M. Kindermann, Yu. V. Nazarov. 2003-01-24. Temperature dependent third cumulant of tunneling noise. https://doi.org/10.1103/physrevlett.90.176802

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