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arXiv · 1012.1988

Noise-induced dynamical transition in systems with symmetric absorbing states

D. I. Russell·R. A. Blythe
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Abstract

We investigate the effect of noise strength on the macroscopic ordering dynamics of systems with symmetric absorbing states. Using an explicit stochastic microscopic model, we present evidence for a phase transition in the coarsening dynamics, from an Ising-like to a voter-like behavior, as the noise strength is increased past a nontrivial critical value. By mapping to a thermal diffusion process, we argue that the transition arises due to locally-absorbing states being entered more readily in the high-noise regime, which in turn prevents surface tension from driving the ordering process.

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D. I. Russell, R. A. Blythe. 2011-03-31. Noise-induced dynamical transition in systems with symmetric absorbing states. https://doi.org/10.1103/physrevlett.106.165702

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