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arXiv · 0810.2938

Feedback and Rate Asymmetry of the Josephson Junction Noise Detector

D. F. Urban·Hermann Grabert
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Abstract

The Josephson junction noise detector measures the skewness of non-Gaussian noise via the asymmetry of the rate of escape from the zero-voltage state upon reversal of the bias current. The feedback of this detector on the noise generating device is investigated in detail. Concise predictions are made for a second Josephson junction as noise generating device. The strong nonlinearity of this component implies particularly strong feedback effects, including a change of sign of the rate asymmetry as the applied voltage approaches twice the superconducting gap.

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D. F. Urban, Hermann Grabert. 2008-10-16. Feedback and Rate Asymmetry of the Josephson Junction Noise Detector. https://doi.org/10.1103/physrevb.79.113102

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