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arXiv · 2311.17794

Noise Dynamics in the Quantum Regime

Clovis Farley·Edouard Pinsolle·Bertrand Reulet
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Abstract

A time-dependent bias voltage on a tunnel junction generates a time-dependent modulation of its current fluctuations, and in particular of its variance. This translates into an excitation at frequency $\tilde{f}$ generating correlations between current fluctuating at any frequency $f$ and at frequency $\pm$ $\tilde{f} -f$. We report the measurement of such a correlation in the fully quantum regime, i.e. when both frequencies are much greater than $k_BT/h$ with $T$ the temperature. Such a correlator, usually referred to as the noise susceptibility, is involved in corrections to the measurements of higher-order moments and in the squeezing of noise.

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Clovis Farley, Edouard Pinsolle, Bertrand Reulet. 2023-11-29. Noise Dynamics in the Quantum Regime. https://doi.org/10.1109/icnf57520.2023.10472766

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