{ "id": "1206.2901", "version": "v1", "published": "2012-06-13T19:24:16.000Z", "updated": "2012-06-13T19:24:16.000Z", "title": "Criticality and the Onset of Ordering in the Standard Vicsek Model", "authors": [ "Gabriel Baglietto", "Ezequiel V. Albano", "Julián Candia" ], "comment": "15 pages, 4 figures. To appear in Interface Focus", "journal": "Interface Focus (2012) 2, 708", "doi": "10.1098/rsfs.2012.0021", "categories": [ "cond-mat.stat-mech", "cond-mat.dis-nn", "physics.comp-ph" ], "abstract": "Experimental observations of animal collective behavior have shown stunning evidence for the emergence of large-scale cooperative phenomena resembling phase transitions in physical systems. Indeed, quantitative studies have found scale-free correlations and critical behavior consistent with the occurrence of continuous, second-order phase transitions. The Standard Vicsek Model (SVM), a minimal model of self-propelled particles in which their tendency to align with each other competes with perturbations controlled by a noise term, appears to capture the essential ingredients of critical flocking phenomena. In this paper, we review recent finite-size scaling and dynamical studies of the SVM, which present a full characterization of the continuous phase transition through dynamical and critical exponents. We also present a complex network analysis of SVM flocks and discuss the onset of ordering in connection with XY-like spin models.", "revisions": [ { "version": "v1", "updated": "2012-06-13T19:24:16.000Z" } ], "analyses": { "keywords": [ "standard vicsek model", "criticality", "cooperative phenomena resembling phase transitions", "large-scale cooperative phenomena resembling phase", "complex network analysis" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1206.2901B" } } }