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Abstract: We study the continuous absorbing-state phase transition in the contactprocess on the Voronoi-Delaunay lattice. The Voronoi construction is a naturalway to introduce quenched coordination disorder in lattice models. We simulatethe disordered system using the quasistationary simulation method and determineits critical exponents and moment ratios. Our results suggest that the criticalbehavior of the disordered system is unchanged with respect to that on aregular lattice, i.e., that of directed percolation.



Autor: Marcelo M. de Oliveira, S. G. Alves, S. C. Ferreira, Ronald Dickman

Fuente: https://arxiv.org/







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