Cosmological constraints on nonstandard inflationary quantum collapse models

Autores
Landau, Susana Judith; Scoccola, Claudia Graciela; Sudarsky, Daniel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We briefly review an important shortcoming-unearthed in previous works-of the standard version of the inflationary model for the emergence of the seeds of cosmic structure. We consider here some consequences emerging from a proposal inspired on ideas of Penrose and Diósi about a quantum-gravity induced reduction of the wave function, which has been put forward to address the shortcomings, arguing that its effect on the inflaton field is what can lead to the emergence of the seeds of cosmic structure. The proposal leads to a deviation of the primordial spectrum from the scale-invariant Harrison-Zel'dovich one, and consequently, to a different CMB power spectrum. We perform statistical analyses to test two quantum collapse schemes with recent data from the CMB, including the 7-yr release of WMAP and the matter power spectrum measured using LRGs by the Sloan Digital Sky Survey. Results from the statistical analyses indicate that several collapse models are compatible with CMB and LRG data, and establish constraints on the free parameters of the models. The data put no restriction on the timescale for the collapse of the scalar field modes. © 2012 American Physical Society.
Fil: Landau, Susana Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Scoccola, Claudia Graciela. Universidad de La Laguna; España
Fil: Sudarsky, Daniel. Universidad Nacional Autónoma de México; México
Materia
Quantum Collapse
Cmb
Cosmology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/56144
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Cosmological constraints on nonstandard inflationary quantum collapse modelsLandau, Susana JudithScoccola, Claudia GracielaSudarsky, DanielQuantum CollapseCmbCosmologyhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We briefly review an important shortcoming-unearthed in previous works-of the standard version of the inflationary model for the emergence of the seeds of cosmic structure. We consider here some consequences emerging from a proposal inspired on ideas of Penrose and Diósi about a quantum-gravity induced reduction of the wave function, which has been put forward to address the shortcomings, arguing that its effect on the inflaton field is what can lead to the emergence of the seeds of cosmic structure. The proposal leads to a deviation of the primordial spectrum from the scale-invariant Harrison-Zel'dovich one, and consequently, to a different CMB power spectrum. We perform statistical analyses to test two quantum collapse schemes with recent data from the CMB, including the 7-yr release of WMAP and the matter power spectrum measured using LRGs by the Sloan Digital Sky Survey. Results from the statistical analyses indicate that several collapse models are compatible with CMB and LRG data, and establish constraints on the free parameters of the models. The data put no restriction on the timescale for the collapse of the scalar field modes. © 2012 American Physical Society.Fil: Landau, Susana Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Scoccola, Claudia Graciela. Universidad de La Laguna; EspañaFil: Sudarsky, Daniel. Universidad Nacional Autónoma de México; MéxicoAmerican Physical Society2012-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/56144Landau, Susana Judith; Scoccola, Claudia Graciela; Sudarsky, Daniel; Cosmological constraints on nonstandard inflationary quantum collapse models; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 85; 12; 4-2012; 1-191550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.85.123001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:24:32Zoai:ri.conicet.gov.ar:11336/56144instacron: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:34982025-09-17 11:24:32.56CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cosmological constraints on nonstandard inflationary quantum collapse models
title Cosmological constraints on nonstandard inflationary quantum collapse models
spellingShingle Cosmological constraints on nonstandard inflationary quantum collapse models
Landau, Susana Judith
Quantum Collapse
Cmb
Cosmology
title_short Cosmological constraints on nonstandard inflationary quantum collapse models
title_full Cosmological constraints on nonstandard inflationary quantum collapse models
title_fullStr Cosmological constraints on nonstandard inflationary quantum collapse models
title_full_unstemmed Cosmological constraints on nonstandard inflationary quantum collapse models
title_sort Cosmological constraints on nonstandard inflationary quantum collapse models
dc.creator.none.fl_str_mv Landau, Susana Judith
Scoccola, Claudia Graciela
Sudarsky, Daniel
author Landau, Susana Judith
author_facet Landau, Susana Judith
Scoccola, Claudia Graciela
Sudarsky, Daniel
author_role author
author2 Scoccola, Claudia Graciela
Sudarsky, Daniel
author2_role author
author
dc.subject.none.fl_str_mv Quantum Collapse
Cmb
Cosmology
topic Quantum Collapse
Cmb
Cosmology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We briefly review an important shortcoming-unearthed in previous works-of the standard version of the inflationary model for the emergence of the seeds of cosmic structure. We consider here some consequences emerging from a proposal inspired on ideas of Penrose and Diósi about a quantum-gravity induced reduction of the wave function, which has been put forward to address the shortcomings, arguing that its effect on the inflaton field is what can lead to the emergence of the seeds of cosmic structure. The proposal leads to a deviation of the primordial spectrum from the scale-invariant Harrison-Zel'dovich one, and consequently, to a different CMB power spectrum. We perform statistical analyses to test two quantum collapse schemes with recent data from the CMB, including the 7-yr release of WMAP and the matter power spectrum measured using LRGs by the Sloan Digital Sky Survey. Results from the statistical analyses indicate that several collapse models are compatible with CMB and LRG data, and establish constraints on the free parameters of the models. The data put no restriction on the timescale for the collapse of the scalar field modes. © 2012 American Physical Society.
Fil: Landau, Susana Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Scoccola, Claudia Graciela. Universidad de La Laguna; España
Fil: Sudarsky, Daniel. Universidad Nacional Autónoma de México; México
description We briefly review an important shortcoming-unearthed in previous works-of the standard version of the inflationary model for the emergence of the seeds of cosmic structure. We consider here some consequences emerging from a proposal inspired on ideas of Penrose and Diósi about a quantum-gravity induced reduction of the wave function, which has been put forward to address the shortcomings, arguing that its effect on the inflaton field is what can lead to the emergence of the seeds of cosmic structure. The proposal leads to a deviation of the primordial spectrum from the scale-invariant Harrison-Zel'dovich one, and consequently, to a different CMB power spectrum. We perform statistical analyses to test two quantum collapse schemes with recent data from the CMB, including the 7-yr release of WMAP and the matter power spectrum measured using LRGs by the Sloan Digital Sky Survey. Results from the statistical analyses indicate that several collapse models are compatible with CMB and LRG data, and establish constraints on the free parameters of the models. The data put no restriction on the timescale for the collapse of the scalar field modes. © 2012 American Physical Society.
publishDate 2012
dc.date.none.fl_str_mv 2012-04
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/11336/56144
Landau, Susana Judith; Scoccola, Claudia Graciela; Sudarsky, Daniel; Cosmological constraints on nonstandard inflationary quantum collapse models; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 85; 12; 4-2012; 1-19
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/56144
identifier_str_mv Landau, Susana Judith; Scoccola, Claudia Graciela; Sudarsky, Daniel; Cosmological constraints on nonstandard inflationary quantum collapse models; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 85; 12; 4-2012; 1-19
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.85.123001
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
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv 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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score 13.001348

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