Violation of the fluctuation-dissipation theorem in time-dependent mesoscopic heat transport

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2010-06-02
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
1-4
Series
PHYSICAL REVIEW LETTERS, Volume 104, issue 22
Abstract
We have analyzed the spectral density of fluctuations of the energy flux through a mesoscopic constriction between two equilibrium reservoirs. It is shown that at finite frequencies, the fluctuating energy flux is not related to the thermal conductance of the constriction by the standard fluctuation-dissipation theorem, but contains additional noise. The main physical consequence of this extra noise is that the fluctuations do not vanish at zero temperature together with the vanishing thermal conductance.
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Keywords
Fluctuation-Dissipation Theorem, Time-Dependent Mesoscopic Heat Transport
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Citation
Averin , D V & Pekola , J P 2010 , ' Violation of the fluctuation-dissipation theorem in time-dependent mesoscopic heat transport ' , Physical Review Letters , vol. 104 , no. 22 , pp. 1-4 . https://doi.org/10.1103/PhysRevLett.104.220601