A clarification on prevailing misconceptions in unimodular gravity

Autores
Bengochea, Gabriel Roman; León, Gabriel; Perez, Alejandro; Sudarsky, Daniel
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The traditional presentation of Unimodular Gravity (UG) consists on indicating that it is an alternative theory of gravity that restricts the generic diffeomorphism invariance of General Relativity. In particular, as often encountered in the literature, unlike General Relativity, Unimodular Gravity is invariant solely under volume-preserving diffeomorphisms. That characterization of UG has led to some confusion and incorrect statements in various treatments on the subject. For instance, sometimes it is claimed (mistakenly) that only spacetime metrics such that |det gμν | = 1 can be considered as valid solutions of the theory. Additionally, that same (incorrect) statement is often invoked to argue that some particular gauges (e.g. the Newtonian or synchronous gauge) are not allowed when dealing with cosmological perturbation theory in UG. The present article is devoted to clarify those and other misconceptions regarding the notion of diffeomorphism invariance, in general, and its usage in the context of UG, in particular.
Fil: Bengochea, Gabriel Roman. Consejo Nacional de Investigaciones 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: León, Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Perez, Alejandro. Universite de Toulon; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Sudarsky, Daniel. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; México
Materia
COSMOLOGICAL PERTURBATION THEORY IN GR AND BEYOND
MODIFIED GRAVITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/219271
Acceder
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spelling A clarification on prevailing misconceptions in unimodular gravityBengochea, Gabriel RomanLeón, GabrielPerez, AlejandroSudarsky, DanielCOSMOLOGICAL PERTURBATION THEORY IN GR AND BEYONDMODIFIED GRAVITYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The traditional presentation of Unimodular Gravity (UG) consists on indicating that it is an alternative theory of gravity that restricts the generic diffeomorphism invariance of General Relativity. In particular, as often encountered in the literature, unlike General Relativity, Unimodular Gravity is invariant solely under volume-preserving diffeomorphisms. That characterization of UG has led to some confusion and incorrect statements in various treatments on the subject. For instance, sometimes it is claimed (mistakenly) that only spacetime metrics such that |det gμν | = 1 can be considered as valid solutions of the theory. Additionally, that same (incorrect) statement is often invoked to argue that some particular gauges (e.g. the Newtonian or synchronous gauge) are not allowed when dealing with cosmological perturbation theory in UG. The present article is devoted to clarify those and other misconceptions regarding the notion of diffeomorphism invariance, in general, and its usage in the context of UG, in particular.Fil: Bengochea, Gabriel Roman. Consejo Nacional de Investigaciones 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: León, Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Perez, Alejandro. Universite de Toulon; Francia. Centre National de la Recherche Scientifique; FranciaFil: Sudarsky, Daniel. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; MéxicoIOP Publishing2023-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219271Bengochea, Gabriel Roman; León, Gabriel; Perez, Alejandro; Sudarsky, Daniel; A clarification on prevailing misconceptions in unimodular gravity; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2023; 11; 11-2023; 1-261475-7516CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1475-7516/2023/11/011info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2023/11/011info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:01Zoai:ri.conicet.gov.ar:11336/219271instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:03:01.934CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A clarification on prevailing misconceptions in unimodular gravity
title A clarification on prevailing misconceptions in unimodular gravity
spellingShingle A clarification on prevailing misconceptions in unimodular gravity
Bengochea, Gabriel Roman
COSMOLOGICAL PERTURBATION THEORY IN GR AND BEYOND
MODIFIED GRAVITY
title_short A clarification on prevailing misconceptions in unimodular gravity
title_full A clarification on prevailing misconceptions in unimodular gravity
title_fullStr A clarification on prevailing misconceptions in unimodular gravity
title_full_unstemmed A clarification on prevailing misconceptions in unimodular gravity
title_sort A clarification on prevailing misconceptions in unimodular gravity
dc.creator.none.fl_str_mv Bengochea, Gabriel Roman
León, Gabriel
Perez, Alejandro
Sudarsky, Daniel
author Bengochea, Gabriel Roman
author_facet Bengochea, Gabriel Roman
León, Gabriel
Perez, Alejandro
Sudarsky, Daniel
author_role author
author2 León, Gabriel
Perez, Alejandro
Sudarsky, Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv COSMOLOGICAL PERTURBATION THEORY IN GR AND BEYOND
MODIFIED GRAVITY
topic COSMOLOGICAL PERTURBATION THEORY IN GR AND BEYOND
MODIFIED GRAVITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The traditional presentation of Unimodular Gravity (UG) consists on indicating that it is an alternative theory of gravity that restricts the generic diffeomorphism invariance of General Relativity. In particular, as often encountered in the literature, unlike General Relativity, Unimodular Gravity is invariant solely under volume-preserving diffeomorphisms. That characterization of UG has led to some confusion and incorrect statements in various treatments on the subject. For instance, sometimes it is claimed (mistakenly) that only spacetime metrics such that |det gμν | = 1 can be considered as valid solutions of the theory. Additionally, that same (incorrect) statement is often invoked to argue that some particular gauges (e.g. the Newtonian or synchronous gauge) are not allowed when dealing with cosmological perturbation theory in UG. The present article is devoted to clarify those and other misconceptions regarding the notion of diffeomorphism invariance, in general, and its usage in the context of UG, in particular.
Fil: Bengochea, Gabriel Roman. Consejo Nacional de Investigaciones 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: León, Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Perez, Alejandro. Universite de Toulon; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Sudarsky, Daniel. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; México
description The traditional presentation of Unimodular Gravity (UG) consists on indicating that it is an alternative theory of gravity that restricts the generic diffeomorphism invariance of General Relativity. In particular, as often encountered in the literature, unlike General Relativity, Unimodular Gravity is invariant solely under volume-preserving diffeomorphisms. That characterization of UG has led to some confusion and incorrect statements in various treatments on the subject. For instance, sometimes it is claimed (mistakenly) that only spacetime metrics such that |det gμν | = 1 can be considered as valid solutions of the theory. Additionally, that same (incorrect) statement is often invoked to argue that some particular gauges (e.g. the Newtonian or synchronous gauge) are not allowed when dealing with cosmological perturbation theory in UG. The present article is devoted to clarify those and other misconceptions regarding the notion of diffeomorphism invariance, in general, and its usage in the context of UG, in particular.
publishDate 2023
dc.date.none.fl_str_mv 2023-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/219271
Bengochea, Gabriel Roman; León, Gabriel; Perez, Alejandro; Sudarsky, Daniel; A clarification on prevailing misconceptions in unimodular gravity; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2023; 11; 11-2023; 1-26
1475-7516
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219271
identifier_str_mv Bengochea, Gabriel Roman; León, Gabriel; Perez, Alejandro; Sudarsky, Daniel; A clarification on prevailing misconceptions in unimodular gravity; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2023; 11; 11-2023; 1-26
1475-7516
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1475-7516/2023/11/011
info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2023/11/011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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