Transient and preparation colored-noise effects: The nonlinear relaxation-time approach

We develop a singular perturbation approach to the problem of the calculation of a characteristic time (the nonlinear relaxation time) for non-Markovian processes driven by Gaussian colored noise with small correlation time. Transient and initial preparation effects are discussed and explicit result...

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Detalles Bibliográficos
Autores: Casademunt i Viader, Jaume, Sancho, José M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1989
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/9444
Acceso en línea:https://hdl.handle.net/2445/9444
Access Level:acceso abierto
Palabra clave:Fluctuacions (Física)
Soroll
Fluctuations (Physics)
Noise
Descripción
Sumario:We develop a singular perturbation approach to the problem of the calculation of a characteristic time (the nonlinear relaxation time) for non-Markovian processes driven by Gaussian colored noise with small correlation time. Transient and initial preparation effects are discussed and explicit results for prototype situations are obtained. New effects on the relaxation of unstable states are predicted. The approach is compared with previous techniques.