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arXiv · 1307.6684

Variational approximations for stationary states of Ising-like models

Alessandro Pelizzola
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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.

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Alessandro Pelizzola. 2013-07-25. Variational approximations for stationary states of Ising-like models. https://doi.org/10.1140/epjb%2Fe2013-40031-6

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