Coarsening in the persistent voter model: Analytical results.

de Almeida, R G; Arenzon, Jeferson J; Corberi, F; Dantas, W G; Smaldone, L · Phys Rev E · 2025

basic_science · Level V

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Abstract

We investigate the coarsening dynamics of a simplified version of the persistent voter model in which an agent can become a zealot-i.e., resistent to change opinion-at each step, based on interactions with its nearest neighbors. We show that such a model captures the main features of the original, non-Markovian, persistent voter model. We derive the governing equations for the one-point and two-point correlation functions. As these equations do not form a closed set, we employ approximate closure schemes, whose validity was confirmed through numerical simulations. Analytical solutions to these equations are obtained and well-agree with the numerical results.