Emergence of inflationary perturbations in the CSL model

The inflationary paradigm is the most successful model that explains the observed spectrum of primordial perturbations. However, the precise emergence of such inhomogeneities and the quantum-to-classical transition of the perturbations has not yet reached a consensus among the community. The continu...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: León, G., Bengochea, G.R.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v76_n1_p1_Leon
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14346044_v76_n1_p1_Leon
record_format dspace
spelling todo:paper_14346044_v76_n1_p1_Leon2023-10-03T16:15:12Z Emergence of inflationary perturbations in the CSL model León, G. Bengochea, G.R. The inflationary paradigm is the most successful model that explains the observed spectrum of primordial perturbations. However, the precise emergence of such inhomogeneities and the quantum-to-classical transition of the perturbations has not yet reached a consensus among the community. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned issues by considering a dynamical reduction of the wave function. The CSL model has been applied to the inflationary universe before and different conclusions have been obtained. In this letter, we use a different approach to implement the CSL model during inflation. In particular, in addition to accounting for the quantum-to-classical transition, we use the CSL model to generate the primordial perturbations, that is, the dynamical evolution provided by the CSL model is responsible for the transition from a homogeneous and isotropic initial state to a final one lacking such symmetries. Our approach leads to results that can be clearly distinguished from preceding works. Specifically, the scalar and tensor power spectra are not time-dependent, and one retains the amplification mechanism of the CSL model. Moreover, our framework depends only on one parameter (the CSL parameter) and its value is consistent with cosmological and laboratory observations. © 2016, The Author(s). JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v76_n1_p1_Leon
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The inflationary paradigm is the most successful model that explains the observed spectrum of primordial perturbations. However, the precise emergence of such inhomogeneities and the quantum-to-classical transition of the perturbations has not yet reached a consensus among the community. The continuous spontaneous localization model (CSL), in the cosmological context, might be used to provide a solution to the mentioned issues by considering a dynamical reduction of the wave function. The CSL model has been applied to the inflationary universe before and different conclusions have been obtained. In this letter, we use a different approach to implement the CSL model during inflation. In particular, in addition to accounting for the quantum-to-classical transition, we use the CSL model to generate the primordial perturbations, that is, the dynamical evolution provided by the CSL model is responsible for the transition from a homogeneous and isotropic initial state to a final one lacking such symmetries. Our approach leads to results that can be clearly distinguished from preceding works. Specifically, the scalar and tensor power spectra are not time-dependent, and one retains the amplification mechanism of the CSL model. Moreover, our framework depends only on one parameter (the CSL parameter) and its value is consistent with cosmological and laboratory observations. © 2016, The Author(s).
format JOUR
author León, G.
Bengochea, G.R.
spellingShingle León, G.
Bengochea, G.R.
Emergence of inflationary perturbations in the CSL model
author_facet León, G.
Bengochea, G.R.
author_sort León, G.
title Emergence of inflationary perturbations in the CSL model
title_short Emergence of inflationary perturbations in the CSL model
title_full Emergence of inflationary perturbations in the CSL model
title_fullStr Emergence of inflationary perturbations in the CSL model
title_full_unstemmed Emergence of inflationary perturbations in the CSL model
title_sort emergence of inflationary perturbations in the csl model
url http://hdl.handle.net/20.500.12110/paper_14346044_v76_n1_p1_Leon
work_keys_str_mv AT leong emergenceofinflationaryperturbationsinthecslmodel
AT bengocheagr emergenceofinflationaryperturbationsinthecslmodel
_version_ 1807320539333656576

Ejemplares similares