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dc.contributor.authorCastellano, Claudio
dc.contributor.authorPastor Satorras, Romualdo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2011-03-23T18:17:07Z
dc.date.available2011-03-23T18:17:07Z
dc.date.created2011-01-27
dc.date.issued2011-01-27
dc.identifier.citationCastellano, C.; Pastor, R. Irrelevance of information outflow in opinion dynamics models. "Physical review E: statistical, nonlinear, and soft matter physics", 27 Gener 2011, vol. 83, núm. 1, p. 1-4.
dc.identifier.issn1539-3755
dc.identifier.urihttp://hdl.handle.net/2117/12045
dc.description.abstractThe Sznajd model for opinion dynamics has attracted a large interest as a simple realization of the psychological principle of social validation. As its most salient feature, it has been claimed that the Sznajd model is qualitatively different from other ordering processes because it is the only one featuring outflow of information as opposed to inflow. We show that this claim is unfounded by presenting a generalized zero-temperature Glauber type of dynamics, which yields results indistinguishable from those of the Sznajd model. In one dimension, we also derive an exact expression for the exit probability of the Sznajd model, which turns out to coincide with the result of an analytical approach based on the Kirkwood approximation. This observation raises interesting questions about the applicability and limitations of this approach.
dc.format.extent4 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshStatistical physics
dc.titleIrrelevance of information outflow in opinion dynamics models
dc.typeArticle
dc.subject.lemacFísica estadística
dc.contributor.groupUniversitat Politècnica de Catalunya. SIMCON - Grup de Recerca de Simulació per Ordinador en Matèria Condensada
dc.identifier.doi10.1103/PhysRevE.83.016113
dc.relation.publisherversionhttp://pre.aps.org/abstract/PRE/v83/i1/e016113
dc.rights.accessOpen Access
drac.iddocument5353052
dc.description.versionPostprint (published version)
upcommons.citation.authorCastellano, C.; Pastor, R.
upcommons.citation.publishedtrue
upcommons.citation.publicationNamePhysical review E: statistical, nonlinear, and soft matter physics
upcommons.citation.volume83
upcommons.citation.number1
upcommons.citation.startingPage1
upcommons.citation.endingPage4


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