Entropy production and time asymmetry in nonequilibrium fluctuations
Statistical Mechanics
2016-08-31 v2
Abstract
The time-reversal symmetry of nonequilibrium fluctuations is experimentally investigated in two out-of-equilibrium systems namely, a Brownian particle in a trap moving at constant speed and an electric circuit with an imposed mean current. The dynamical randomness of their nonequilibrium fluctuations is characterized in terms of the standard and time-reversed entropies per unit time of dynamical systems theory. We present experimental results showing that their difference equals the thermodynamic entropy production in units of Boltzmann's constant.
Keywords
Cite
@article{arxiv.cond-mat/0703696,
title = {Entropy production and time asymmetry in nonequilibrium fluctuations},
author = {David Andrieux and Pierre Gaspard and Sergio Ciliberto and Nicolas Garnier and Sylvain Joubaud and Artyom Petrosyan},
journal= {arXiv preprint arXiv:cond-mat/0703696},
year = {2016}
}