Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum
- Autores
- León, José Gabriel; Piccirilli, María Pía
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Cosmic inflation, which describes an accelerated expansion of the early Universe, yields the most successful predictions regarding temperature anisotropies in the cosmic microwave background (CMB). Nevertheless, the precise origin of the primordial perturbations and their quantum-to-classical transition is still an open issue. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned puzzles by considering an objective reduction of the inflaton wave function. In this work, we calculate the primordial power spectrum at the next leading order in the Hubble flow functions that results from applying the CSL model to slow roll inflation within the semiclassical gravity framework. We employ the method known as uniform approximation along with a second order expansion in the Hubble flow functions. We analyze some features in the CMB temperature and primordial power spectra that could help to distinguish between the standard prediction and our approach.
Fil: León, José Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Piccirilli, María Pía. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina - Materia
-
COSMIC MICROWAVE BACKGROUND
COSMOLOGICAL PARAMETERS
INFLATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/139903
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Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrumLeón, José GabrielPiccirilli, María PíaCOSMIC MICROWAVE BACKGROUNDCOSMOLOGICAL PARAMETERSINFLATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Cosmic inflation, which describes an accelerated expansion of the early Universe, yields the most successful predictions regarding temperature anisotropies in the cosmic microwave background (CMB). Nevertheless, the precise origin of the primordial perturbations and their quantum-to-classical transition is still an open issue. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned puzzles by considering an objective reduction of the inflaton wave function. In this work, we calculate the primordial power spectrum at the next leading order in the Hubble flow functions that results from applying the CSL model to slow roll inflation within the semiclassical gravity framework. We employ the method known as uniform approximation along with a second order expansion in the Hubble flow functions. We analyze some features in the CMB temperature and primordial power spectra that could help to distinguish between the standard prediction and our approach.Fil: León, José Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Piccirilli, María Pía. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaAmerican Physical Society2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/139903León, José Gabriel; Piccirilli, María Pía; Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum; American Physical Society; Physical Review D; 102; 4; 8-2020; 1-212470-00102470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevD.102.043515info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.102.043515info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2006.03092info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:15Zoai:ri.conicet.gov.ar:11336/139903instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:55:15.463CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
title |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
spellingShingle |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum León, José Gabriel COSMIC MICROWAVE BACKGROUND COSMOLOGICAL PARAMETERS INFLATION |
title_short |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
title_full |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
title_fullStr |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
title_full_unstemmed |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
title_sort |
Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum |
dc.creator.none.fl_str_mv |
León, José Gabriel Piccirilli, María Pía |
author |
León, José Gabriel |
author_facet |
León, José Gabriel Piccirilli, María Pía |
author_role |
author |
author2 |
Piccirilli, María Pía |
author2_role |
author |
dc.subject.none.fl_str_mv |
COSMIC MICROWAVE BACKGROUND COSMOLOGICAL PARAMETERS INFLATION |
topic |
COSMIC MICROWAVE BACKGROUND COSMOLOGICAL PARAMETERS INFLATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Cosmic inflation, which describes an accelerated expansion of the early Universe, yields the most successful predictions regarding temperature anisotropies in the cosmic microwave background (CMB). Nevertheless, the precise origin of the primordial perturbations and their quantum-to-classical transition is still an open issue. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned puzzles by considering an objective reduction of the inflaton wave function. In this work, we calculate the primordial power spectrum at the next leading order in the Hubble flow functions that results from applying the CSL model to slow roll inflation within the semiclassical gravity framework. We employ the method known as uniform approximation along with a second order expansion in the Hubble flow functions. We analyze some features in the CMB temperature and primordial power spectra that could help to distinguish between the standard prediction and our approach. Fil: León, José Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Piccirilli, María Pía. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina |
description |
Cosmic inflation, which describes an accelerated expansion of the early Universe, yields the most successful predictions regarding temperature anisotropies in the cosmic microwave background (CMB). Nevertheless, the precise origin of the primordial perturbations and their quantum-to-classical transition is still an open issue. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned puzzles by considering an objective reduction of the inflaton wave function. In this work, we calculate the primordial power spectrum at the next leading order in the Hubble flow functions that results from applying the CSL model to slow roll inflation within the semiclassical gravity framework. We employ the method known as uniform approximation along with a second order expansion in the Hubble flow functions. We analyze some features in the CMB temperature and primordial power spectra that could help to distinguish between the standard prediction and our approach. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/139903 León, José Gabriel; Piccirilli, María Pía; Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum; American Physical Society; Physical Review D; 102; 4; 8-2020; 1-21 2470-0010 2470-0029 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/139903 |
identifier_str_mv |
León, José Gabriel; Piccirilli, María Pía; Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum; American Physical Society; Physical Review D; 102; 4; 8-2020; 1-21 2470-0010 2470-0029 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevD.102.043515 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.102.043515 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2006.03092 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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