The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models

Abstract We discover a weak-gravity bound in scalar-gravity systems in the asymptotic-safety paradigm. The weak-gravity bound arises in these systems under the approximations we make, when gravitational fluctuations exceed a critical strength. Beyond this critical strength, gravitational fluctuation...

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Autores principales:	Gustavo P. de Brito, Astrid Eichhorn, Rafael Robson Lino dos Santos
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Global Symmetries Models of Quantum Gravity Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/0fbcd378b66440d5a0bb68b28cb52696
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spelling	oai:doaj.org-article:0fbcd378b66440d5a0bb68b28cb526962021-11-21T12:40:52ZThe weak-gravity bound and the need for spin in asymptotically safe matter-gravity models10.1007/JHEP11(2021)1101029-8479https://doaj.org/article/0fbcd378b66440d5a0bb68b28cb526962021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)110https://doaj.org/toc/1029-8479Abstract We discover a weak-gravity bound in scalar-gravity systems in the asymptotic-safety paradigm. The weak-gravity bound arises in these systems under the approximations we make, when gravitational fluctuations exceed a critical strength. Beyond this critical strength, gravitational fluctuations can generate complex fixed-point values in higher-order scalar interactions. Asymptotic safety can thus only be realized at sufficiently weak gravitational interactions. We find that within truncations of the matter-gravity dynamics, the fixed point lies beyond the critical strength, unless spinning matter, i.e., fermions and vectors, is also included in the model.Gustavo P. de BritoAstrid EichhornRafael Robson Lino dos SantosSpringerOpenarticleGlobal SymmetriesModels of Quantum GravityRenormalization GroupNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-49 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Global Symmetries Models of Quantum Gravity Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Global Symmetries Models of Quantum Gravity Renormalization Group Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Gustavo P. de Brito Astrid Eichhorn Rafael Robson Lino dos Santos The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
description	Abstract We discover a weak-gravity bound in scalar-gravity systems in the asymptotic-safety paradigm. The weak-gravity bound arises in these systems under the approximations we make, when gravitational fluctuations exceed a critical strength. Beyond this critical strength, gravitational fluctuations can generate complex fixed-point values in higher-order scalar interactions. Asymptotic safety can thus only be realized at sufficiently weak gravitational interactions. We find that within truncations of the matter-gravity dynamics, the fixed point lies beyond the critical strength, unless spinning matter, i.e., fermions and vectors, is also included in the model.
format	article
author	Gustavo P. de Brito Astrid Eichhorn Rafael Robson Lino dos Santos
author_facet	Gustavo P. de Brito Astrid Eichhorn Rafael Robson Lino dos Santos
author_sort	Gustavo P. de Brito
title	The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
title_short	The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
title_full	The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
title_fullStr	The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
title_full_unstemmed	The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
title_sort	weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/0fbcd378b66440d5a0bb68b28cb52696
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The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models

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