Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture

Abstract Einstein-Maxwell-dilaton theory with non-trivial dilaton potential is known to admit asymptotically flat and (Anti-)de Sitter charged black hole solutions. We investigate the conditions for the presence of horizons as function of the parameters mass M, charge Q and dilaton coupling strength...

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Autores principales:	Karim Benakli, Carlo Branchina, Gaëtan Lafforgue-Marmet
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Black Holes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/3bbf9e239c8841f19b3233d12fa32dca
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spelling	oai:doaj.org-article:3bbf9e239c8841f19b3233d12fa32dca2021-11-14T12:39:57ZDilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture10.1007/JHEP11(2021)0581029-8479https://doaj.org/article/3bbf9e239c8841f19b3233d12fa32dca2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)058https://doaj.org/toc/1029-8479Abstract Einstein-Maxwell-dilaton theory with non-trivial dilaton potential is known to admit asymptotically flat and (Anti-)de Sitter charged black hole solutions. We investigate the conditions for the presence of horizons as function of the parameters mass M, charge Q and dilaton coupling strength α. We observe that there is a value of α which separate two regions, one where the black hole is Reissner-Nordström-like from a region where it is Schwarzschild-like. We find that for de Sitter and small non-vanishing α, the extremal case is not reached by the solution. We also discuss the attractive or repulsive nature of the leading long distance interaction between two such black holes, or a test particle and one black hole, from a world-line effective field theory point of view. Finally, we discuss possible modifications of the Weak Gravity Conjecture in the presence of both a dilatonic coupling and a cosmological constant.Karim BenakliCarlo BranchinaGaëtan Lafforgue-MarmetSpringerOpenarticleBeyond Standard ModelBlack HolesNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-42 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Black Holes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Black Holes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Karim Benakli Carlo Branchina Gaëtan Lafforgue-Marmet Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
description	Abstract Einstein-Maxwell-dilaton theory with non-trivial dilaton potential is known to admit asymptotically flat and (Anti-)de Sitter charged black hole solutions. We investigate the conditions for the presence of horizons as function of the parameters mass M, charge Q and dilaton coupling strength α. We observe that there is a value of α which separate two regions, one where the black hole is Reissner-Nordström-like from a region where it is Schwarzschild-like. We find that for de Sitter and small non-vanishing α, the extremal case is not reached by the solution. We also discuss the attractive or repulsive nature of the leading long distance interaction between two such black holes, or a test particle and one black hole, from a world-line effective field theory point of view. Finally, we discuss possible modifications of the Weak Gravity Conjecture in the presence of both a dilatonic coupling and a cosmological constant.
format	article
author	Karim Benakli Carlo Branchina Gaëtan Lafforgue-Marmet
author_facet	Karim Benakli Carlo Branchina Gaëtan Lafforgue-Marmet
author_sort	Karim Benakli
title	Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
title_short	Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
title_full	Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
title_fullStr	Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
title_full_unstemmed	Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture
title_sort	dilatonic (anti-)de sitter black holes and weak gravity conjecture
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/3bbf9e239c8841f19b3233d12fa32dca
work_keys_str_mv	AT karimbenakli dilatonicantidesitterblackholesandweakgravityconjecture AT carlobranchina dilatonicantidesitterblackholesandweakgravityconjecture AT gaetanlafforguemarmet dilatonicantidesitterblackholesandweakgravityconjecture
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Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture

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