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Fluctuations in out of equilibrium systems: from theory to experiment

Abstract : We introduce from an experimental point of view the main concepts of fluctuation theorems for work, heat and entropy production in out of equilibrium systems. We will discuss the important difference between the applications of these concepts to dynamical and to stochastic systems. We will mainly analyze the stochastic systems using the measurements performed in two experiments : a) a harmonic oscillator driven out of equilibrium by an external force b) a colloidal particle trapped in a time dependent double well potential. We will rapidly describe some consequences of fluctuation theorems and some useful applications to the analysis of experimental data. As an example the case of a molecular motor will be analyzed in some detail. Finally we will discuss the problems related to the the applications of fluctuation theorem to dynamical systems.
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Contributor : Sergio Ciliberto Connect in order to contact the contributor
Submitted on : Thursday, September 16, 2010 - 5:18:04 PM
Last modification on : Thursday, April 19, 2018 - 2:54:03 PM
Long-term archiving on: : Tuesday, October 23, 2012 - 4:15:16 PM


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  • HAL Id : ensl-00518064, version 1
  • ARXIV : 1009.3362



Sergio Ciliberto, Sylvain Joubaud, Artem Petrosyan. Fluctuations in out of equilibrium systems: from theory to experiment. 2010. ⟨ensl-00518064v1⟩



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