Structure formation in non-local bouncing models

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.creatorJackson, D.-
Autor(es): dc.creatorBufalo, R.-
Data de aceite: dc.date.accessioned2025-08-21T15:56:22Z-
Data de disponibilização: dc.date.available2025-08-21T15:56:22Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1475-7516/2023/05/010-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248786-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248786-
Descrição: dc.descriptionIn this study, we investigate the growth of structures within the Deser-Woodard nonlocal theory and extend it to various bouncing cosmology scenarios. Our findings show that the observable structure growth rate, fσ 8, in a vacuum-dominated universe is finite within the redshift range of 0 < z < 2, contrary to previous literature. Although fσ 8 exhibits no divergences, we observe a slight difference between the evolution of the ΛCDM and the non-local DW II models. Regarding structure formation in bouncing cosmologies, we evaluate the evolution of fσ 8 near the bouncing point. Among the different bouncing cases we explore, the oscillatory bounce and pre-inflationary asymmetrical bounce demonstrate a physical profile where the growth rate begins as a small perturbation in the early epoch and increases with inflation, which can be regarded as the seeds of large-scale structures. These findings are significant because they shed light on the growth of seed fluctuations into cosmic structures resulting from non-local effects.-
Descrição: dc.descriptionInstituto de Física Teórica IFT-UNESP, R. Dr. Bento Teobaldo Ferraz, 271, Várzea da Barra Funda, - SP-
Descrição: dc.descriptionDepartamento de Física Universidade Federal de Lavras, Caixa Postal 3037 MG-
Descrição: dc.descriptionInstituto de Física Teórica IFT-UNESP, R. Dr. Bento Teobaldo Ferraz, 271, Várzea da Barra Funda, - SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Cosmology and Astroparticle Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcosmic singularity-
Palavras-chave: dc.subjectcosmological perturbation theory-
Palavras-chave: dc.subjectCosmological perturbation theory in GR and beyond-
Palavras-chave: dc.subjectgalaxy clusters-
Título: dc.titleStructure formation in non-local bouncing models-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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