title: Noise-induced dynamical transition in systems with symmetric absorbing states.
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.
authors: SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
authors: D I
authors: DI
authors: Russell
authors: R A
authors: RA
authors: Blythe