Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2007-03-30
Journal of Statistical Mechanics: Theory and Experiment 09 (2007) P09018
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.1088/1742-5468/2007/09/P09018
We study experimentally the thermal fluctuations of energy input and dissipation in a harmonic oscillator driven out of equilibrium, and search for Fluctuation Relations. We study transient evolution from the equilibrium state, together with non equilibrium steady states. Fluctuations Relations are obtained experimentally for both the work and the heat, for the stationary and transient evolutions. A Stationary State Fluctuation Theorem is verified for the two time prescriptions of the torque. But a Transient Fluctuation Theorem is satisfied for the work given to the system but not for the heat dissipated by the system in the case of linear forcing. Experimental observations on the statistical and dynamical properties of the fluctuation of the angle, we derive analytical expressions for the probability density function of the work and the heat. We obtain for the first time an analytic expression of the probability density function of the heat. Agreement between experiments and our modeling is excellent.
Ciliberto Sergio
Garnier Nicolas
Joubaud Sylvain
No associations
LandOfFree
Fluctuation theorems for harmonic oscillators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fluctuation theorems for harmonic oscillators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuation theorems for harmonic oscillators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-650584