Irreversible dynamics of a massive intruder in dense granular fluids

Details Irreversible dynamics of a massive intruder in dense granular fluids Irreversible dynamics of a massive intruder in dense granular fluids

2010-07-02

arxiv.org/abs/1007.0364v2

EPL 92 34001 (2010)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 3 figures accepted for publication in EPL

Scientific paper

A Generalized Langevin Equation with exponential memory is proposed for the dynamics of a massive intruder in a dense granular fluid. The model reproduces numerical correlation and response functions, violating the equilibrium Fluctuation Dissipation relations. The source of memory is identified in the coupling of the tracer velocity $V$ with a spontaneous local velocity field $U$ in the surrounding fluid. Such identification allows us to measure the intruder's fluctuating entropy production as a function of $V$ and $U$, obtaining a neat verification of the Fluctuation Relation.

Affiliated with

Also associated with

No associations

Rating

Irreversible dynamics of a massive intruder in dense granular fluids 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 Irreversible dynamics of a massive intruder in dense granular fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irreversible dynamics of a massive intruder in dense granular fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-727498