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Landau, S.J.; Scóccola, C.G.; Sudarsky, D. "Cosmological constraints on nonstandard inflationary quantum collapse models" (2012) Physical Review D - Particles, Fields, Gravitation and Cosmology. 85(12)
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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.

Registro:

Documento: Artículo
Título:Cosmological constraints on nonstandard inflationary quantum collapse models
Autor:Landau, S.J.; Scóccola, C.G.; Sudarsky, D.
Filiación:Instituto de Física de Buenos Aires, CONICET-UBA, Ciudad Universitaria-Pab. 1, 1428 Buenos Aires, Argentina
Instituto de Astrofísica de Canarias (IAC), C/Vía Láctea, s/n, E-38200, La Laguna, Tenerife, Spain
Dpto. Astrofísica, Universidad de la Laguna (ULL), E-38206 La Laguna, Tenerife, Spain
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A. Postal 70-543, México D. F. 04510, Mexico
Carrera Del Investigador Científica y Tecnológica - CONICET, Argentina
Año:2012
Volumen:85
Número:12
DOI: http://dx.doi.org/10.1103/PhysRevD.85.123001
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v85_n12_p_Landau

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Citas:

---------- APA ----------
Landau, S.J., Scóccola, C.G. & Sudarsky, D. (2012) . Cosmological constraints on nonstandard inflationary quantum collapse models. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(12).
http://dx.doi.org/10.1103/PhysRevD.85.123001
---------- CHICAGO ----------
Landau, S.J., Scóccola, C.G., Sudarsky, D. "Cosmological constraints on nonstandard inflationary quantum collapse models" . Physical Review D - Particles, Fields, Gravitation and Cosmology 85, no. 12 (2012).
http://dx.doi.org/10.1103/PhysRevD.85.123001
---------- MLA ----------
Landau, S.J., Scóccola, C.G., Sudarsky, D. "Cosmological constraints on nonstandard inflationary quantum collapse models" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 12, 2012.
http://dx.doi.org/10.1103/PhysRevD.85.123001
---------- VANCOUVER ----------
Landau, S.J., Scóccola, C.G., Sudarsky, D. Cosmological constraints on nonstandard inflationary quantum collapse models. Phys Rev D Part Fields Gravit Cosmol. 2012;85(12).
http://dx.doi.org/10.1103/PhysRevD.85.123001