Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
979652 | Physica A: Statistical Mechanics and its Applications | 2006 | 11 Pages |
Abstract
We consider the characterization of the nonequilibrium stationary state of a randomly driven granular gas in terms of an entropy-production-based variational formulation. Enforcing spatial homogeneity, we first consider the temporal stability of the stationary state reached after a transient. In connection, two heuristic albeit physically motivated candidates for the nonequilibrium entropy production are put forward. It turns out that none of them displays an extremum for the stationary velocity distribution selected by the dynamics. Finally, the relevance of the relative Kullbach entropy is discussed.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Ioana Bena, François Coppex, Michel Droz, Paolo Visco, Emmanuel Trizac, Frédéric van Wijland,