Violations of local equilibrium and stochastic thermostats

Details Violations of local equilibrium and stochastic thermostats Violations of local equilibrium and stochastic thermostats

2006-08-17

arxiv.org/abs/nlin/0608042v1

Nonlinear Sciences

Chaotic Dynamics

5pp, 3 figs

Scientific paper

10.1016/j.physleta.2007.03.071

We quantitatively investigate the violations of local equilibrium in the
$\phi^4$ 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.

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