Enlightening the CSL model landscape in inflation

Abstract We propose a novel realization for the natural extrapolation of the continuous spontaneous localization (CSL) model, in order to account for the origin of primordial inhomogeneities during inflation. This particular model is based on three main elements: (i) the semiclassical gravity framew...

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Autores principales:	Gabriel León, Gabriel R. Bengochea
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/965c5989debd489b99aeb38e53dc6d7b
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spelling	oai:doaj.org-article:965c5989debd489b99aeb38e53dc6d7b2021-12-05T12:09:02ZEnlightening the CSL model landscape in inflation10.1140/epjc/s10052-021-09851-w1434-60441434-6052https://doaj.org/article/965c5989debd489b99aeb38e53dc6d7b2021-12-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09851-whttps://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We propose a novel realization for the natural extrapolation of the continuous spontaneous localization (CSL) model, in order to account for the origin of primordial inhomogeneities during inflation. This particular model is based on three main elements: (i) the semiclassical gravity framework, (ii) a collapse-generating operator associated to a relativistic invariant scalar of the energy-momentum tensor, and (iii) an extension of the CSL parameter(s) as a function of the spacetime curvature. Furthermore, employing standard cosmological perturbation theory at linear order, and for a reasonable range within the parameter space of the model, we obtain a nearly scale invariant power spectrum consistent with recent observational CMB data. This opens a vast landscape of different options for the application of the CSL model to the cosmological context, and possibly sheds light on searches for a full covariant version of the CSL theory.Gabriel LeónGabriel R. BengocheaSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-19 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Gabriel León Gabriel R. Bengochea Enlightening the CSL model landscape in inflation
description	Abstract We propose a novel realization for the natural extrapolation of the continuous spontaneous localization (CSL) model, in order to account for the origin of primordial inhomogeneities during inflation. This particular model is based on three main elements: (i) the semiclassical gravity framework, (ii) a collapse-generating operator associated to a relativistic invariant scalar of the energy-momentum tensor, and (iii) an extension of the CSL parameter(s) as a function of the spacetime curvature. Furthermore, employing standard cosmological perturbation theory at linear order, and for a reasonable range within the parameter space of the model, we obtain a nearly scale invariant power spectrum consistent with recent observational CMB data. This opens a vast landscape of different options for the application of the CSL model to the cosmological context, and possibly sheds light on searches for a full covariant version of the CSL theory.
format	article
author	Gabriel León Gabriel R. Bengochea
author_facet	Gabriel León Gabriel R. Bengochea
author_sort	Gabriel León
title	Enlightening the CSL model landscape in inflation
title_short	Enlightening the CSL model landscape in inflation
title_full	Enlightening the CSL model landscape in inflation
title_fullStr	Enlightening the CSL model landscape in inflation
title_full_unstemmed	Enlightening the CSL model landscape in inflation
title_sort	enlightening the csl model landscape in inflation
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/965c5989debd489b99aeb38e53dc6d7b
work_keys_str_mv	AT gabrielleon enlighteningthecslmodellandscapeininflation AT gabrielrbengochea enlighteningthecslmodellandscapeininflation
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Enlightening the CSL model landscape in inflation

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