1998/07/27 by J-M Drouffe, C Godreche, Claude Godrèche · 1 citation
Mathematics · Physics and Astronomy · #Computer science #Connection (principal bundle) #Exponent #Geometry #Ising model #Mathematics #Measure (data warehouse) #Opinion Dynamics and Social Influence #Parameter space #Physics #Statistical physics #Statistics #Stochastic modelling #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #Voter model #cond-mat.stat-mech
paper · pdf · doi:10.1088/0305-4470/32/2/003
published as J. Phys. A 32, 249 (1999) · Latex
arxiv created 1998/07/27 · openalex publication_date 1999/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We study the dynamics of a class of two-dimensional stochastic processes, depending on two parameters, which may be interpreted as two different temperatures respectively associated to interfacial and to bulk noise. Special lines in the plane of parameters correspond to the Ising model, voter model and majority vote model. The dynamics of this class of models may be described formally in terms of reaction-diffusion processes for a set of coalescing, annihilating, and branching random walkers. We use the freedom allowed by the space of parameters to measure, by numerical simulations, the persistence probability of a generic model in the low-temperature phase, where the system coarsens. This probability is found to decay at large times as a power law with a seemingly constant exponent . We also discuss the connection between persistence and the nature of the interfaces between domains.