Stochastic resonance: the role of potential asymmetry and non Gaussian noises

Detalhes bibliográficos
Autor(a) principal: Wio,Horacio S.
Data de Publicação: 1999
Outros Autores: Bouzat,Sebastián
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000100012
Resumo: Within the two state theory (TST) for stochastic resonance (SR) we analize two different aspects: (a) the extension of the TST in order to include potential asymmetry (i.e.: the states show different stabilities); (b) the evaluation of transition rates for systems whose stationary distribution is non Gaussian. We apply the results of (a) to study the role of the potential symmetry for SR in bistable systems, observing that the signal-to-noise ratio increases with the symmetry of the potential of the system indicating that it is this feature that governs the optimization of the response. We apply the results of (b) to discuss SR in situations where we can assume that the noise is non Gaussian, and discuss its relation with experimental results in sensory systems.
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spelling Stochastic resonance: the role of potential asymmetry and non Gaussian noisesWithin the two state theory (TST) for stochastic resonance (SR) we analize two different aspects: (a) the extension of the TST in order to include potential asymmetry (i.e.: the states show different stabilities); (b) the evaluation of transition rates for systems whose stationary distribution is non Gaussian. We apply the results of (a) to study the role of the potential symmetry for SR in bistable systems, observing that the signal-to-noise ratio increases with the symmetry of the potential of the system indicating that it is this feature that governs the optimization of the response. We apply the results of (b) to discuss SR in situations where we can assume that the noise is non Gaussian, and discuss its relation with experimental results in sensory systems.Sociedade Brasileira de Física1999-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000100012Brazilian Journal of Physics v.29 n.1 1999reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97331999000100012info:eu-repo/semantics/openAccessWio,Horacio S.Bouzat,Sebastiáneng1999-09-17T00:00:00Zoai:scielo:S0103-97331999000100012Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:1999-09-17T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Stochastic resonance: the role of potential asymmetry and non Gaussian noises
title Stochastic resonance: the role of potential asymmetry and non Gaussian noises
spellingShingle Stochastic resonance: the role of potential asymmetry and non Gaussian noises
Wio,Horacio S.
title_short Stochastic resonance: the role of potential asymmetry and non Gaussian noises
title_full Stochastic resonance: the role of potential asymmetry and non Gaussian noises
title_fullStr Stochastic resonance: the role of potential asymmetry and non Gaussian noises
title_full_unstemmed Stochastic resonance: the role of potential asymmetry and non Gaussian noises
title_sort Stochastic resonance: the role of potential asymmetry and non Gaussian noises
author Wio,Horacio S.
author_facet Wio,Horacio S.
Bouzat,Sebastián
author_role author
author2 Bouzat,Sebastián
author2_role author
dc.contributor.author.fl_str_mv Wio,Horacio S.
Bouzat,Sebastián
description Within the two state theory (TST) for stochastic resonance (SR) we analize two different aspects: (a) the extension of the TST in order to include potential asymmetry (i.e.: the states show different stabilities); (b) the evaluation of transition rates for systems whose stationary distribution is non Gaussian. We apply the results of (a) to study the role of the potential symmetry for SR in bistable systems, observing that the signal-to-noise ratio increases with the symmetry of the potential of the system indicating that it is this feature that governs the optimization of the response. We apply the results of (b) to discuss SR in situations where we can assume that the noise is non Gaussian, and discuss its relation with experimental results in sensory systems.
publishDate 1999
dc.date.none.fl_str_mv 1999-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000100012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000100012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97331999000100012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.29 n.1 1999
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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