Recent Advances in Inflation

We review recent trends in inflationary dynamics in the context of viable modified gravity theories. After providing a general overview of the inflationary paradigm emphasizing on what problems hot Big Bang theory inflation solves, and a somewhat introductory presentation of single-field inflationar...

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Detalhes bibliográficos
Autores: Odintsov, Sergei D., Oikonomou, Vasilis K., Giannakoudi, Ifigeneia, Fronimos, F. P., Lymperiadou, Eirini C.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/336441
Acesso em linha:http://hdl.handle.net/10261/336441
Access Level:acceso abierto
Palavra-chave:Inflation
Modified gravity
f(R)gravity
Primordial gravitational waves
Early acceleration
CMB
Primordial universe
Early Universe
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spelling Recent Advances in InflationOdintsov, Sergei D.Oikonomou, Vasilis K.Giannakoudi, IfigeneiaFronimos, F. P.Lymperiadou, Eirini C.InflationModified gravityf(R)gravityPrimordial gravitational wavesEarly accelerationCMBPrimordial universeEarly UniverseWe review recent trends in inflationary dynamics in the context of viable modified gravity theories. After providing a general overview of the inflationary paradigm emphasizing on what problems hot Big Bang theory inflation solves, and a somewhat introductory presentation of single-field inflationary theories with minimal and non-minimal couplings, we review how inflation can be realized in terms of several string-motivated models of inflation, which involve Gauss–Bonnet couplings of the scalar field, higher-order derivatives of the scalar field, and some subclasses of viable Horndeski theories. We also present and analyze inflation in the context of Chern–Simons theories of gravity, including various subcases and generalizations of string-corrected modified gravities, which also contain Chern–Simons correction terms, with the scalar field being identified with the invisible axion, which is the most viable to date dark matter candidate. We also provide a detailed account of vacuum () gravity inflation, and also inflation in (,) and kinetic-corrected (,) theories of gravity. At the end of the review, we discuss the technique for calculating the overall effect of modified gravity on the waveform of the standard general relativistic gravitational wave form.This work was partially supported by MICINN (Spain), project PID2019-104397GB-I00 and by the program Unidad de Excelencia Maria de Maeztu CEX2020-001058-M, Spain (SDO). Research at Perimeter Institute is supported in part by the Government of Canada through the Department of Innovation, Science and Economic Development and by the Province of Ontario through the Ministry of Colleges and Universities (Ifigeneia Giannakoudi). This work was supported by BCGS (Eirini Lymperiadou).With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2020-001058-M)Peer reviewedMultidisciplinary Digital Publishing InstituteAgencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/336441reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104397GB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001058-Mhttps://doi.org/10.3390/sym15091701Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3364412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Recent Advances in Inflation
title Recent Advances in Inflation
spellingShingle Recent Advances in Inflation
Odintsov, Sergei D.
Inflation
Modified gravity
f(R)gravity
Primordial gravitational waves
Early acceleration
CMB
Primordial universe
Early Universe
title_short Recent Advances in Inflation
title_full Recent Advances in Inflation
title_fullStr Recent Advances in Inflation
title_full_unstemmed Recent Advances in Inflation
title_sort Recent Advances in Inflation
dc.creator.none.fl_str_mv Odintsov, Sergei D.
Oikonomou, Vasilis K.
Giannakoudi, Ifigeneia
Fronimos, F. P.
Lymperiadou, Eirini C.
author Odintsov, Sergei D.
author_facet Odintsov, Sergei D.
Oikonomou, Vasilis K.
Giannakoudi, Ifigeneia
Fronimos, F. P.
Lymperiadou, Eirini C.
author_role author
author2 Oikonomou, Vasilis K.
Giannakoudi, Ifigeneia
Fronimos, F. P.
Lymperiadou, Eirini C.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Inflation
Modified gravity
f(R)gravity
Primordial gravitational waves
Early acceleration
CMB
Primordial universe
Early Universe
topic Inflation
Modified gravity
f(R)gravity
Primordial gravitational waves
Early acceleration
CMB
Primordial universe
Early Universe
description We review recent trends in inflationary dynamics in the context of viable modified gravity theories. After providing a general overview of the inflationary paradigm emphasizing on what problems hot Big Bang theory inflation solves, and a somewhat introductory presentation of single-field inflationary theories with minimal and non-minimal couplings, we review how inflation can be realized in terms of several string-motivated models of inflation, which involve Gauss–Bonnet couplings of the scalar field, higher-order derivatives of the scalar field, and some subclasses of viable Horndeski theories. We also present and analyze inflation in the context of Chern–Simons theories of gravity, including various subcases and generalizations of string-corrected modified gravities, which also contain Chern–Simons correction terms, with the scalar field being identified with the invisible axion, which is the most viable to date dark matter candidate. We also provide a detailed account of vacuum () gravity inflation, and also inflation in (,) and kinetic-corrected (,) theories of gravity. At the end of the review, we discuss the technique for calculating the overall effect of modified gravity on the waveform of the standard general relativistic gravitational wave form.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/336441
url http://hdl.handle.net/10261/336441
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104397GB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001058-M
https://doi.org/10.3390/sym15091701
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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