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dc.contributor.author
Landau, Susana Judith
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dc.contributor.author
Scoccola, Claudia Graciela
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dc.contributor.author
Sudarsky, Daniel
dc.date.available
2018-08-17T16:12:11Z
dc.date.issued
2012-04
dc.identifier.citation
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
dc.identifier.issn
1550-7998
dc.identifier.uri
http://hdl.handle.net/11336/56144
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Quantum Collapse
dc.subject
Cmb
dc.subject
Cosmology
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Cosmological constraints on nonstandard inflationary quantum collapse models
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-10T17:45:27Z
dc.journal.volume
85
dc.journal.number
12
dc.journal.pagination
1-19
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Nueva York
dc.description.fil
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
dc.description.fil
Fil: Scoccola, Claudia Graciela. Universidad de La Laguna; España
dc.description.fil
Fil: Sudarsky, Daniel. Universidad Nacional Autónoma de México; México
dc.journal.title
Physical Review D: Particles, Fields, Gravitation and Cosmology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevD.85.123001
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