title: Pair contact process in two dimensions.
abstract: We study the stationary properties of the two-dimensional pair contact process, a nonequilibrium lattice model exhibiting a phase transition to an absorbing state with an infinite number of configurations. The critical probability and static critical exponents are determined via Monte Carlo simulations, as well as order-parameter moment ratios and the scaling of the initial density decay. The static critical properties fall in the directed percolation universality class.
authors.affiliation: Departmento de Física, Universidade Federal de Minas Gerais, Caixa Postal 702, 30161-970 Belo Horizonte-MG, Brazil. jaff@fisica.ufmg.br
authors.forename: J
authors.initials: J
authors.lastname: Kamphorst Leal Da Silva
authors.forename: R
authors.initials: R
authors.lastname: Dickman