Colored noise in spatially extended systems

We study the effects of time and space correlations of an external additive colored noise on the steady-state behavior of a time-dependent Ginzburg-Landau model. Simulations show the existence of nonequilibrium phase transitions controlled by both the correlation time and length of the noise. A Fokk...

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Detalles Bibliográficos
Autores: García Ojalvo, Jordi, Sancho, José M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1994
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/18758
Acceso en línea:https://hdl.handle.net/2445/18758
Access Level:acceso abierto
Palabra clave:Física matemàtica
Física estadística
Termodinàmica
Sistemes dinàmics diferenciables
Mathematical physics
Statistical physics
Thermodynamics
Differentiable dynamical systems
Descripción
Sumario:We study the effects of time and space correlations of an external additive colored noise on the steady-state behavior of a time-dependent Ginzburg-Landau model. Simulations show the existence of nonequilibrium phase transitions controlled by both the correlation time and length of the noise. A Fokker-Planck equation and the steady probability density of the process are obtained by means of a theoretical approximation.