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dc.contributor.author
Bengochea, Gabriel Roman
dc.contributor.author
Leon Garcia, Gabriel
dc.date.available
2017-08-01T18:15:12Z
dc.date.issued
2016-11
dc.identifier.citation
Bengochea, Gabriel Roman; Leon Garcia, Gabriel; Puzzling initial conditions in the Rh=ct model; Springer; European Physical Journal C: Particles and Fields; 76; 626; 11-2016; 1-13
dc.identifier.issn
1434-6044
dc.identifier.uri
http://hdl.handle.net/11336/21739
dc.description.abstract
In recent years, some studies have drawn attention to the lack of large-angle correlations in the observed cosmic microwave background (CMB) temperature anisotropies with respect to that predicted within the standard ΛΛ CDM model. Lately, it has been argued that such a lack of correlations could be explained in the framework of the so-called Rh=ctRh=ct model without inflation. The aim of this work is to study whether there is a mechanism to generate, through a quantum field theory, the primordial power spectrum presented by these authors. Specifically, we consider two different scenarios: first, we assume a scalar field dominating the early Universe in the Rh=ctRh=ct cosmological model, and second, we deal with the possibility of adding an early inflationary phase to the mentioned model. During the analysis of the consistency between the predicted and observed amplitudes of the CMB temperature anisotropies in both scenarios, we run into deep issues which indicate that it is not clear how to characterize the primordial quantum perturbations within the Rh=ctRh=ct model.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cosmology
dc.subject
Inflation
dc.subject
Quantum Physics
dc.subject.classification
Física de Partículas y Campos
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Puzzling initial conditions in the Rh=ct model
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-31T18:04:36Z
dc.journal.volume
76
dc.journal.number
626
dc.journal.pagination
1-13
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Bengochea, Gabriel Roman. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Leon Garcia, Gabriel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
European Physical Journal C: Particles and Fields
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1140/epjc/s10052-016-4485-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-4485-y
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