Flavour composition and entropy increase of cosmological neutrinos after decoherence.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorBoriero, Daniel Francisco-
Autor(es): dc.creatorSchwarz, Dominik J.-
Autor(es): dc.creatorVelten, Hermano Endlich Schneider-
Data de aceite: dc.date.accessioned2025-08-21T15:08:45Z-
Data de disponibilização: dc.date.available2025-08-21T15:08:45Z-
Data de envio: dc.date.issued2023-01-17-
Data de envio: dc.date.issued2023-01-17-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/16002-
Fonte completa do material: dc.identifierhttps://doi.org/10.3390/universe5100203-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1003434-
Descrição: dc.descriptionWe propose that gravitational interactions of cosmic neutrinos with the statistically homogeneous and isotropic fluctuations of space-time lead to decoherence. This working hypothesis, which we describe by means of a Lindblad operator, is applied to the system of two- and three-flavour neutrinos undergoing vacuum oscillations and the consequences are investigated. As a result of this decoherence we find that the neutrino entropy would increase as a function of initial spectral distortions, mixing angles and charge-parity (CP)-violation phase. Subsequently we discuss the chances to discover such an increase observationally (in principle). We also present the expected flavour composition of the cosmic neutrino background after decoherence is completed. The physics of two- or three-flavour oscillation of cosmological neutrinos resembles in many aspects two- or three-level systems in atomic clocks, which were recently proposed by Weinberg for the study of decoherence phenomena.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Fonte: o PDF do artigo.-
Palavras-chave: dc.subjectCosmology-
Palavras-chave: dc.subjectNeutrino oscillations-
Palavras-chave: dc.subjectCosmic neutrino background-
Título: dc.titleFlavour composition and entropy increase of cosmological neutrinos after decoherence.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.