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arXiv · 1110.6726

Theory of temperature fluctuation statistics in superconductor-normal metal tunnel structures

M. A. Laakso·T. T. Heikkilä·Yuli V. Nazarov
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Abstract

We describe the statistics of temperature fluctuations in a SINIS structure, where a normal metal island (N) is coupled by tunnel junctions (I) to two superconducting leads (S). We specify conditions under which this structure exhibits manifestly non-Gaussian fluctuations of temperature. We consider both the Gaussian and non-Gaussian regimes of these fluctuations, and the current fluctuations that are caused by the fluctuating temperature. We also describe a measurement setup that could be used to observe the temperature fluctuations.

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M. A. Laakso, T. T. Heikkilä, Yuli V. Nazarov. 2012-04-02. Theory of temperature fluctuation statistics in superconductor-normal metal tunnel structures. https://doi.org/10.1103/physrevb.85.184521

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