Higher-order moments at the critical point of the Ziff-Gulari-Barshad model.
We studied the continuous phase transition between the active and the absorbing state of the Ziff-Gulari-Barshad (ZGB) model. Through Monte Carlo simulations we determined all the moments of the order parameter up to fourth order and their ratios at the critical point. We show that the ratios we found are in agreement with those of the contact and pair contact processes in two dimensions, which give support to the idea that the ZGB model is in the directed percolation universality class in (2+1) dimensions.
Leite
V S
VS
Departamento de Física, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil.
Hoenicke
G L
GL
Figueiredo
W
W