Approximate symmetries and gravity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/JHEP01(2020)088 http://hdl.handle.net/11449/199945 |
Resumo: | There are strong reasons to believe that global symmetries of quantum theories cannot be exact in the presence of gravity. While this has been argued at the qualitative level, establishing a quantitative statement is more challenging. In this work we take new steps towards quantifying symmetry violation in EFTs with gravity. First, we evaluate global charge violation by microscopic black holes present in a thermal system, which represents an irreducible, universal effect at finite temperature. Second, based on general QFT considerations, we propose that local symmetry-violating processes should be faster than black hole-induced processes at any sub-Planckian temperature. Such a proposal can be seen as part of the “swampland” program to constrain EFTs emerging from quantum gravity. Considering an EFT perspective, we formulate a con- jecture which requires the existence of operators violating global symmetry and places quantitative bounds on them. We study the interplay of our conjecture with emergent symmetries in QFT. In models where gauged U(1)’s enforce accidental symmetries, we find that constraints from the Weak Gravity Conjecture can ensure that our conjecture is satisfied. We also study the consistency of the conjecture with QFT models of emergent symmetries such as extradimensional localization, the Froggatt-Nielsen mechanism, and the clockwork mechanism. |
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Repositório Institucional da UNESP |
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Approximate symmetries and gravityBlack HolesEffective Field TheoriesGlobal SymmetriesThere are strong reasons to believe that global symmetries of quantum theories cannot be exact in the presence of gravity. While this has been argued at the qualitative level, establishing a quantitative statement is more challenging. In this work we take new steps towards quantifying symmetry violation in EFTs with gravity. First, we evaluate global charge violation by microscopic black holes present in a thermal system, which represents an irreducible, universal effect at finite temperature. Second, based on general QFT considerations, we propose that local symmetry-violating processes should be faster than black hole-induced processes at any sub-Planckian temperature. Such a proposal can be seen as part of the “swampland” program to constrain EFTs emerging from quantum gravity. Considering an EFT perspective, we formulate a con- jecture which requires the existence of operators violating global symmetry and places quantitative bounds on them. We study the interplay of our conjecture with emergent symmetries in QFT. In models where gauged U(1)’s enforce accidental symmetries, we find that constraints from the Weak Gravity Conjecture can ensure that our conjecture is satisfied. We also study the consistency of the conjecture with QFT models of emergent symmetries such as extradimensional localization, the Froggatt-Nielsen mechanism, and the clockwork mechanism.Walter Burke Institute for Theoretical Physics California Institute of Technology, 1200 E California BlvdICTP South American Institute for Fundamental Research & IFT-UNESP, R. Dr. Bento Teobaldo FerrazICTP South American Institute for Fundamental Research & IFT-UNESP, R. Dr. Bento Teobaldo FerrazCalifornia Institute of TechnologyUniversidade Estadual Paulista (Unesp)Fichet, Sylvain [UNESP]Saraswat, Prashant2020-12-12T01:53:31Z2020-12-12T01:53:31Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/JHEP01(2020)088Journal of High Energy Physics, v. 2020, n. 1, 2020.1029-84791126-6708http://hdl.handle.net/11449/19994510.1007/JHEP01(2020)0882-s2.0-85077843284Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of High Energy Physicsinfo:eu-repo/semantics/openAccess2021-10-23T10:11:28Zoai:repositorio.unesp.br:11449/199945Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:31:28.312283Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Approximate symmetries and gravity |
title |
Approximate symmetries and gravity |
spellingShingle |
Approximate symmetries and gravity Fichet, Sylvain [UNESP] Black Holes Effective Field Theories Global Symmetries |
title_short |
Approximate symmetries and gravity |
title_full |
Approximate symmetries and gravity |
title_fullStr |
Approximate symmetries and gravity |
title_full_unstemmed |
Approximate symmetries and gravity |
title_sort |
Approximate symmetries and gravity |
author |
Fichet, Sylvain [UNESP] |
author_facet |
Fichet, Sylvain [UNESP] Saraswat, Prashant |
author_role |
author |
author2 |
Saraswat, Prashant |
author2_role |
author |
dc.contributor.none.fl_str_mv |
California Institute of Technology Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Fichet, Sylvain [UNESP] Saraswat, Prashant |
dc.subject.por.fl_str_mv |
Black Holes Effective Field Theories Global Symmetries |
topic |
Black Holes Effective Field Theories Global Symmetries |
description |
There are strong reasons to believe that global symmetries of quantum theories cannot be exact in the presence of gravity. While this has been argued at the qualitative level, establishing a quantitative statement is more challenging. In this work we take new steps towards quantifying symmetry violation in EFTs with gravity. First, we evaluate global charge violation by microscopic black holes present in a thermal system, which represents an irreducible, universal effect at finite temperature. Second, based on general QFT considerations, we propose that local symmetry-violating processes should be faster than black hole-induced processes at any sub-Planckian temperature. Such a proposal can be seen as part of the “swampland” program to constrain EFTs emerging from quantum gravity. Considering an EFT perspective, we formulate a con- jecture which requires the existence of operators violating global symmetry and places quantitative bounds on them. We study the interplay of our conjecture with emergent symmetries in QFT. In models where gauged U(1)’s enforce accidental symmetries, we find that constraints from the Weak Gravity Conjecture can ensure that our conjecture is satisfied. We also study the consistency of the conjecture with QFT models of emergent symmetries such as extradimensional localization, the Froggatt-Nielsen mechanism, and the clockwork mechanism. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:53:31Z 2020-12-12T01:53:31Z 2020-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/JHEP01(2020)088 Journal of High Energy Physics, v. 2020, n. 1, 2020. 1029-8479 1126-6708 http://hdl.handle.net/11449/199945 10.1007/JHEP01(2020)088 2-s2.0-85077843284 |
url |
http://dx.doi.org/10.1007/JHEP01(2020)088 http://hdl.handle.net/11449/199945 |
identifier_str_mv |
Journal of High Energy Physics, v. 2020, n. 1, 2020. 1029-8479 1126-6708 10.1007/JHEP01(2020)088 2-s2.0-85077843284 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of High Energy Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129329660428288 |