Semiclassical calculation of decay rates

Detalhes bibliográficos
Autor(a) principal: Moreira, André Bessa
Data de Publicação: 2009
Outros Autores: Carvalho Filho, Carlos Alberto Aragão de, Fraga, Eduardo Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/29792
Resumo: Several relevant aspects of quantum-field processes can be well described by semiclassical methods. In particular, the knowledge of non-trivial classical solutions of the field equations, and the thermal and quantum fluctuations around them, provide non-perturbative information about the theory. In this work, we discuss the calculation of the one-loop effective action from the semiclasssical viewpoint. We intend to use this formalism to obtain an accurate expression for the decay rate of non-static metastable states
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spelling Moreira, André BessaCarvalho Filho, Carlos Alberto Aragão deFraga, Eduardo Souza2020-08-11T13:41:09Z2020-08-11T13:41:09Z2009-04-01BESSA, A.; CARVALHO, C.A.A. de; FRAGA, E.s.. Semiclassical calculation of decay rates. Nuclear Physics A, [s.l.], v. 820, n. 1-4, p. 231-234, abr. 2009. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0375947409000840?via%3Dihub. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1016/j.nuclphysa.2009.01.057.https://repositorio.ufrn.br/jspui/handle/123456789/2979210.1016/j.nuclphysa.2009.01.057ElsevierAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessDecay ratesFinite-temperature field theorySemiclassical calculation of decay ratesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSeveral relevant aspects of quantum-field processes can be well described by semiclassical methods. In particular, the knowledge of non-trivial classical solutions of the field equations, and the thermal and quantum fluctuations around them, provide non-perturbative information about the theory. In this work, we discuss the calculation of the one-loop effective action from the semiclasssical viewpoint. We intend to use this formalism to obtain an accurate expression for the decay rate of non-static metastable statesengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALSemiclassicalCalculationDecay_bessa_2009.pdfSemiclassicalCalculationDecay_bessa_2009.pdfapplication/pdf172756https://repositorio.ufrn.br/bitstream/123456789/29792/1/SemiclassicalCalculationDecay_bessa_2009.pdf31af91642c4a8683ede331afcb3aabd4MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/29792/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29792/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTSemiclassicalCalculationDecay_bessa_2009.pdf.txtSemiclassicalCalculationDecay_bessa_2009.pdf.txtExtracted texttext/plain9023https://repositorio.ufrn.br/bitstream/123456789/29792/4/SemiclassicalCalculationDecay_bessa_2009.pdf.txtcb25d669571b569e111833d32b09530fMD54THUMBNAILSemiclassicalCalculationDecay_bessa_2009.pdf.jpgSemiclassicalCalculationDecay_bessa_2009.pdf.jpgGenerated Thumbnailimage/jpeg1525https://repositorio.ufrn.br/bitstream/123456789/29792/5/SemiclassicalCalculationDecay_bessa_2009.pdf.jpg6463681f36022449ee7db4729ed0a585MD55123456789/297922020-08-16 04:12:07.795oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-08-16T07:12:07Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Semiclassical calculation of decay rates
title Semiclassical calculation of decay rates
spellingShingle Semiclassical calculation of decay rates
Moreira, André Bessa
Decay rates
Finite-temperature field theory
title_short Semiclassical calculation of decay rates
title_full Semiclassical calculation of decay rates
title_fullStr Semiclassical calculation of decay rates
title_full_unstemmed Semiclassical calculation of decay rates
title_sort Semiclassical calculation of decay rates
author Moreira, André Bessa
author_facet Moreira, André Bessa
Carvalho Filho, Carlos Alberto Aragão de
Fraga, Eduardo Souza
author_role author
author2 Carvalho Filho, Carlos Alberto Aragão de
Fraga, Eduardo Souza
author2_role author
author
dc.contributor.author.fl_str_mv Moreira, André Bessa
Carvalho Filho, Carlos Alberto Aragão de
Fraga, Eduardo Souza
dc.subject.por.fl_str_mv Decay rates
Finite-temperature field theory
topic Decay rates
Finite-temperature field theory
description Several relevant aspects of quantum-field processes can be well described by semiclassical methods. In particular, the knowledge of non-trivial classical solutions of the field equations, and the thermal and quantum fluctuations around them, provide non-perturbative information about the theory. In this work, we discuss the calculation of the one-loop effective action from the semiclasssical viewpoint. We intend to use this formalism to obtain an accurate expression for the decay rate of non-static metastable states
publishDate 2009
dc.date.issued.fl_str_mv 2009-04-01
dc.date.accessioned.fl_str_mv 2020-08-11T13:41:09Z
dc.date.available.fl_str_mv 2020-08-11T13:41:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv BESSA, A.; CARVALHO, C.A.A. de; FRAGA, E.s.. Semiclassical calculation of decay rates. Nuclear Physics A, [s.l.], v. 820, n. 1-4, p. 231-234, abr. 2009. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0375947409000840?via%3Dihub. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1016/j.nuclphysa.2009.01.057.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/29792
dc.identifier.doi.none.fl_str_mv 10.1016/j.nuclphysa.2009.01.057
identifier_str_mv BESSA, A.; CARVALHO, C.A.A. de; FRAGA, E.s.. Semiclassical calculation of decay rates. Nuclear Physics A, [s.l.], v. 820, n. 1-4, p. 231-234, abr. 2009. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0375947409000840?via%3Dihub. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1016/j.nuclphysa.2009.01.057.
10.1016/j.nuclphysa.2009.01.057
url https://repositorio.ufrn.br/jspui/handle/123456789/29792
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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