{ "id": "cond-mat/0210036", "version": "v1", "published": "2002-10-01T22:36:39.000Z", "updated": "2002-10-01T22:36:39.000Z", "title": "Phase diagram of a probabilistic cellular automaton with three-site interactions", "authors": [ "A. P. F. Atman", "R. Dickman", "J. G. Moreira" ], "comment": "15 pages, 7 figures, submited to PRE", "doi": "10.1103/PhysRevE.67.016107", "categories": [ "cond-mat.stat-mech" ], "abstract": "We study a (1+1) dimensional probabilistic cellular automaton that is closely related to the Domany-Kinzel (DKCA), but in which the update of a given site depends on the state of {\\it three} sites at the previous time step. Thus, compared with the DKCA, there is an additional parameter, $p_3$, representing the probability for a site to be active at time $t$, given that its nearest neighbors and itself were active at time $t-1$. We study phase transitions and critical behavior for the activity {\\it and} for damage spreading, using one- and two-site mean-field approximations, and simulations, for $p_3=0$ and $p_3=1$. We find evidence for a line of tricritical points in the ($p_1, p_2, p_3$) parameter space, obtained using a mean-field approximation at pair level. To construct the phase diagram in simulations we employ the growth-exponent method in an interface representation. For $p_3 =0$, the phase diagram is similar to the DKCA, but the damage spreading transition exhibits a reentrant phase. For $p_3=1$, the growth-exponent method reproduces the two absorbing states, first and second-order phase transitions, bicritical point, and damage spreading transition recently identified by Bagnoli {\\it et al.} [Phys. Rev. E{\\bf 63}, 046116 (2001)].", "revisions": [ { "version": "v1", "updated": "2002-10-01T22:36:39.000Z" } ], "analyses": { "keywords": [ "phase diagram", "three-site interactions", "damage spreading transition", "dimensional probabilistic cellular automaton", "growth-exponent method reproduces" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }