Nonequilibrium steady states in contact: Approximate thermodynamic structure and zero-th law for driven lattice gases
Statistical Mechanics
2015-05-07 v2
Abstract
We explore driven lattice gases for the existence of an intensive thermodynamic variable which could determine "equilibration" between two nonequilibrium steady-state systems kept in weak contact. In simulations, we find that these systems satisfy surprisingly simple thermodynamic laws, such as the zero-th law and the fluctuation-response relation between the particle-number fluctuation and the corresponding susceptibility remarkably well. However at higher densities, small but observable deviations from these laws occur due to nontrivial contact dynamics and the presence of long-range spatial correlations.
Keywords
Cite
@article{arxiv.1002.4349,
title = {Nonequilibrium steady states in contact: Approximate thermodynamic structure and zero-th law for driven lattice gases},
author = {Punyabrata Pradhan and Christian P. Amann and Udo Seifert},
journal= {arXiv preprint arXiv:1002.4349},
year = {2015}
}
Comments
Revised, 4 pages, 5 figures