Experimental study of work exchange with a granular gas: The viewpoint of the FluctuationTheorem

This article reports on an experimental study of the fluctuations of energy fluxbetween a granular gas and a small driven harmonic oscillator. The DC-motor driving this systemis used simultaneously as actuator and probe. The statistics of work fluctuations at controlledforcing, between the motor and...

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Bibliographic Details
Published in:Europhysics letters 2011-12
Main Author: Naert, Antoine
Format: Article
Language:English
Subjects:
Condensed Matter
Physics
Statistical Mechanics
Online Access:Get full text
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Summary:This article reports on an experimental study of the fluctuations of energy fluxbetween a granular gas and a small driven harmonic oscillator. The DC-motor driving this systemis used simultaneously as actuator and probe. The statistics of work fluctuations at controlledforcing, between the motor and the gas are examined from the viewpoint of the FluctuationTheorem. A characteristic energy Ec of the granular gas, is obtained from this relation betweenthe probabilities of an event and its reversal.
ISSN:0295-5075
1286-4854