On the heat flux and entropy produced by thermal fluctuations

Abstract : We report an experimental and theoretical analysis of the energy exchanged between two conductors kept at different temperature and coupled by the electric thermal noise. Experimentally we determine, as functions of the temperature difference, the heat flux, the out-of- equilibrium variance and a conservation law for the fluctuating entropy, which we justify theoretically. The system is ruled by the same equations of two Brownian particles kept at different temperatures and coupled by an elastic force. Our results set strong constrains on the energy exchanged between coupled nano-systems kept at different temperature.}
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Submitted on : Saturday, April 6, 2013 - 4:40:38 PM
Last modification on : Thursday, October 11, 2018 - 6:44:01 PM
Long-term archiving on : Monday, April 3, 2017 - 1:13:47 AM

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  • HAL Id : ensl-00777700, version 2
  • ARXIV : 1301.4311

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Sergio Ciliberto, Alberto Imparato, Antoine Naert, Marius Tanase. On the heat flux and entropy produced by thermal fluctuations. PRL, 2013, 110, p.180601, pp.4. ⟨ensl-00777700v2⟩

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