title: Curvature-driven coarsening in the two-dimensional Potts model.
abstract: We study the geometric properties of polymixtures after a sudden quench in temperature. We mimic these systems with the q -states Potts model on a square lattice with and without weak quenched disorder, and their evolution with Monte Carlo simulations with nonconserved order parameter. We analyze the distribution of hull-enclosed areas for different initial conditions and compare our results with recent exact and numerical findings for q=2 (Ising) case. Our results demonstrate the memory of the presence or absence of long-range correlations in the initial state during the coarsening regime and exhibit superuniversality properties.
authors.affiliation: Instituto de Física and INCT Sistemas Complexos, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, RS, Brazil.
authors.forename: Marcos P O
authors.initials: MP
authors.lastname: Loureiro
authors.forename: Jeferson J
authors.initials: JJ
authors.lastname: Arenzon
authors.forename: Leticia F
authors.initials: LF
authors.lastname: Cugliandolo
authors.forename: Alberto
authors.initials: A
authors.lastname: Sicilia
mesh_terms: D008962:Models, Theoretical; D009010:Monte Carlo Method; D013696:Temperature; D013997:Time Factors