Fluctuations of heat in driven two-state systems : Application to a single-electron box with superconducting gap

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2023-05
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Language
en
Pages
5
1-5
Series
Physical Review E, Volume 107, issue 5
Abstract
By using trajectory averaging to analyze the statistics of energy dissipation in the nonequilibrium energy-state transitions of a driven two-state system, we show that the average energy dissipation induced by external driving is connected to its fluctuations about equilibrium through the simple relation 2kBT(Q)=(δQ2), which is preserved by an adiabatic approximation scheme. We use this scheme to obtain the heat statistics of a single-electron box with a superconducting lead in the slow-driving regime, where the dissipated heat becomes normally distributed with a relatively high probability to be extracted from the environment rather than dissipated. We also discuss the validity of heat fluctuation relations beyond driven two-state transitions and the slow-driving regime.
Description
Funding Information: This work was supported through the Academy of Finland Grant No. 312057 and by the Nokia Industrial Doctoral School in Quantum Technology. Publisher Copyright: © 2023 American Physical Society.
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Citation
Pyhäranta , T , Peliti , L & Pekola , J P 2023 , ' Fluctuations of heat in driven two-state systems : Application to a single-electron box with superconducting gap ' , Physical Review E , vol. 107 , no. 5 , 054113 , pp. 1-5 . https://doi.org/10.1103/PhysRevE.107.054113