Artículos de revistas
Two versions of the threshold contact model in two dimensions
Fecha
2012Registro en:
COMPUTER PHYSICS COMMUNICATIONS, AMSTERDAM, v. 183, n. 9, supl. 1, Part 4, pp. 2001-2005, SEP, 2012
0010-4655
10.1016/j.cpc.2012.05.003
Autor
Silva, Evandro Freire da
Oliveira, Mario Jose de
Institución
Resumen
Two versions of the threshold contact process ordinary and conservative - are studied on a square lattice. In the first, particles are created on active sites, those having at least two nearest neighbor sites occupied, and are annihilated spontaneously. In the conservative version, a particle jumps from its site to an active site. Mean-field analysis suggests the existence of a first-order phase transition, which is confirmed by Monte Carlo simulations. In the thermodynamic limit, the two versions are found to give the same results. (C) 2012 Elsevier B.V. All rights reserved.