10024

Equilibrium and Non-Equilibrium Ising Models by Means of PCA

Carlo Lancia, Benedetto Scoppola
Universita di Roma "Tor Vergata"
arXiv:1307.2148 [math-ph], (8 Jul 2013)

@article{2013arXiv1307.2148L,

   author={Lancia}, C. and {Scoppola}, B.},

   title={"{Equilibrium and non-equilibrium Ising models by means of PCA}"},

   journal={ArXiv e-prints},

   archivePrefix={"arXiv"},

   eprint={1307.2148},

   primaryClass={"math-ph"},

   keywords={Mathematical Physics},

   year={2013},

   month={jul},

   adsurl={http://adsabs.harvard.edu/abs/2013arXiv1307.2148L},

   adsnote={Provided by the SAO/NASA Astrophysics Data System}

}

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We propose a unified approach to reversible and irreversible PCA dynamics, and we show that in the case of 1D and 2D nearest neighbour Ising systems with periodic boundary conditions we are able to compute the stationary measure of the dynamics also when the latter is irreversible. We also show how, according to [DPSS12], the stationary measure is very close to the Gibbs for a suitable choice of the parameters of the PCA dynamics, both in the reversible and in the irreversible cases. We discuss some numerical aspects regarding this topic, including a possible parallel implementation.
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