Violations of local equilibrium and stochastic thermostats

Kenichiro Aoki

doi:10.1016/j.physleta.2007.03.071

paper

Violations of local equilibrium and stochastic thermostats

arXiv:nlin/0608042 · doi:10.1016/j.physleta.2007.03.071

Abstract

We quantitatively investigate the violations of local equilibrium in the $ϕ^{4}$ theory under thermal gradients, using stochastic thermostats. We find that the deviations from local equilibrium can be quite well described by a behavior $\sim (\nabla T)^{2}$ . The dependence of the quantities on the thermostat type is analyzed and its physical implications are discussed.

5pp, 3 figs