Spatiotemporal generalization of the Harris criterion and its application to diffusive disorder

Use este identificador para citar ou linkar para este item: http://hdl.handle.net/1843/41520

Tipo:	Artigo de Periódico
Título:	Spatiotemporal generalization of the Harris criterion and its application to diffusive disorder
Autor(es):	Thomas Vojta Ronald Dickman
Resumo:	We investigate how a clean continuous phase transition is affected by spatiotemporal disorder, i.e., by an external perturbation that fluctuates in both space and time. We derive a generalization of the Harris criterionfor the stability of the clean critical behavior in terms of the space-time correlation function of the external perturbation. As an application, we consider diffusive disorder, i.e., an external perturbation governed by diffusive dynamics, and its effects on a variety of equilibrium and nonequilibrium critical points. We also discuss the relation between diffusive disorder and diffusive dynamical degrees of freedom in the example of model C of the Hohenberg-Halperin classification and comment on Griffiths singularities.
Assunto:	Fenômenos críticos Sistemas desordenados Transições de fase
Idioma:	eng
País:	Brasil
Editor:	Universidade Federal de Minas Gerais
Sigla da Instituição:	UFMG
Departamento:	ICX - DEPARTAMENTO DE FÍSICA
Tipo de Acesso:	Acesso Restrito
Identificador DOI:	https://doi.org/10.1103/PhysRevE.93.032143
URI:	http://hdl.handle.net/1843/41520
Data do documento:	25-Mar-2016
metadata.dc.url.externa:	https://doi.org/10.1103/PhysRevE.93.032143
metadata.dc.relation.ispartof:	Physical Review E
Aparece nas coleções:	Artigo de Periódico

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