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Laakso, M.A. (author), Heikkilä, T.T. (author), Nazarov, Y.V. (author)
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...
journal article 2012
document
Laakso, M.A. (author), Heikkilä, T.T. (author), Nazarov, Y.V. (author)
We propose a mesoscopic setup which exhibits strong and manifestly non-Gaussian fluctuations of energy and temperature when suitably driven out of equilibrium. The setup consists of a normal metal island (N) coupled by tunnel junctions (I) to two superconducting leads (S), forming a SINIS structure, and is biased near the threshold voltage for...
journal article 2012
document
Laakso, M.A. (author), Heikkilä, T.T. (author), Nazarov, Y.V. (author)
Interplay of cotunneling and single-electron tunneling in a thermally isolated single-electron transistor leads to peculiar overheating effects. In particular, there is an interesting crossover interval where the competition between cotunneling and single-electron tunneling changes to the dominance of the latter. In this interval, the current...
journal article 2010
document
Laakso, M.A. (author), Heikkilä, T.T. (author), Nazarov, Y.V. (author)
We consider the fully overheated single-electron transistor, where the heat balance is determined entirely by electron transfers. We find three distinct transport regimes corresponding to cotunneling, single-electron tunneling, and a competition between the two. We find an anomalous sensitivity to temperature fluctuations at the crossover...
journal article 2010
document
Heikkilä, T.T. (author), Nazarov, Y.V. (author)
We study the statistics of the fluctuating electron temperature in a metallic island coupled to reservoirs via resistive contacts and driven out of equilibrium by either a temperature or voltage difference between the reservoirs. The fluctuations of temperature are well defined provided that the energy relaxation rate inside the island exceeds...
journal article 2009
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