Conflict between some higher-order curvature invariant terms

A viable quantum theory does not allow curvature invariant terms of different higher orders to be accommodated in the gravitational action. We show that there is indeed a conflict between the curvature squared and Gauss-Bonnet squared terms from the point of view of hermiticity. This means one shoul...

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Autores principales:	Dalia Saha, Mohosin Alam, Ranajit Mandal, Abhik Kumar Sanyal
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/7377c7b6b3db40c08be1aa3f672ac43f
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spelling	oai:doaj.org-article:7377c7b6b3db40c08be1aa3f672ac43f2021-12-04T04:32:49ZConflict between some higher-order curvature invariant terms0550-321310.1016/j.nuclphysb.2021.115570https://doaj.org/article/7377c7b6b3db40c08be1aa3f672ac43f2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0550321321002674https://doaj.org/toc/0550-3213A viable quantum theory does not allow curvature invariant terms of different higher orders to be accommodated in the gravitational action. We show that there is indeed a conflict between the curvature squared and Gauss-Bonnet squared terms from the point of view of hermiticity. This means one should choose either, in addition to the Einstein-Hilbert term, but never the two together. We explore early cosmic evolution with Gauss-Bonnet squared term.Dalia SahaMohosin AlamRanajit MandalAbhik Kumar SanyalElsevierarticleNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENNuclear Physics B, Vol 973, Iss , Pp 115570- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Dalia Saha Mohosin Alam Ranajit Mandal Abhik Kumar Sanyal Conflict between some higher-order curvature invariant terms
description	A viable quantum theory does not allow curvature invariant terms of different higher orders to be accommodated in the gravitational action. We show that there is indeed a conflict between the curvature squared and Gauss-Bonnet squared terms from the point of view of hermiticity. This means one should choose either, in addition to the Einstein-Hilbert term, but never the two together. We explore early cosmic evolution with Gauss-Bonnet squared term.
format	article
author	Dalia Saha Mohosin Alam Ranajit Mandal Abhik Kumar Sanyal
author_facet	Dalia Saha Mohosin Alam Ranajit Mandal Abhik Kumar Sanyal
author_sort	Dalia Saha
title	Conflict between some higher-order curvature invariant terms
title_short	Conflict between some higher-order curvature invariant terms
title_full	Conflict between some higher-order curvature invariant terms
title_fullStr	Conflict between some higher-order curvature invariant terms
title_full_unstemmed	Conflict between some higher-order curvature invariant terms
title_sort	conflict between some higher-order curvature invariant terms
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7377c7b6b3db40c08be1aa3f672ac43f
work_keys_str_mv	AT daliasaha conflictbetweensomehigherordercurvatureinvariantterms AT mohosinalam conflictbetweensomehigherordercurvatureinvariantterms AT ranajitmandal conflictbetweensomehigherordercurvatureinvariantterms AT abhikkumarsanyal conflictbetweensomehigherordercurvatureinvariantterms
_version_	1718373037653360640

Conflict between some higher-order curvature invariant terms

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