Variational approximations for stationary states of Ising-like models

Alessandro Pelizzola ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2013, vol. 86, issue 4, 1-8

Abstract: We introduce a new variational approach to the stationary state of kinetic Ising-like models. The approach is based on the cluster expansion of the entropy term appearing in a functional which is minimized by the system history. We rederive a known mean-field theory and propose a new method, here called diamond approximation, which turns out to be more accurate and faster than other methods of comparable computational complexity. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Keywords: Statistical and Nonlinear Physics (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1140/epjb/e2013-40031-6

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