Causality and gravity

Abstract We show how uncertainty in the causal structure of field theory is essentially inevitable when one includes quantum gravity. This includes the fact that lightcones are ill-defined in such a theory. This effect is small in the effective field theory regime, where it is independent of the UV...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	John F. Donoghue, Gabriel Menezes
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Models of Quantum Gravity Effective Field Theories Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/b6c4b82bf38248ae9ee9785c8667adbc
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b6c4b82bf38248ae9ee9785c8667adbc
record_format	dspace
spelling	oai:doaj.org-article:b6c4b82bf38248ae9ee9785c8667adbc2021-11-08T11:16:16ZCausality and gravity10.1007/JHEP11(2021)0101029-8479https://doaj.org/article/b6c4b82bf38248ae9ee9785c8667adbc2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)010https://doaj.org/toc/1029-8479Abstract We show how uncertainty in the causal structure of field theory is essentially inevitable when one includes quantum gravity. This includes the fact that lightcones are ill-defined in such a theory. This effect is small in the effective field theory regime, where it is independent of the UV completion of the theory, but grows with energy and represents an unknown uncertainty for a generic UV completion. We include details of the causality uncertainty which arises in a particular UV completion, i.e. quadratic gravity. We describe how the mechanisms uncovered in the effective field theory treatment, and some of those in quadratic gravity, could be common features of quantum gravity.John F. DonoghueGabriel MenezesSpringerOpenarticleModels of Quantum GravityEffective Field TheoriesNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-23 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Models of Quantum Gravity Effective Field Theories Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Models of Quantum Gravity Effective Field Theories Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 John F. Donoghue Gabriel Menezes Causality and gravity
description	Abstract We show how uncertainty in the causal structure of field theory is essentially inevitable when one includes quantum gravity. This includes the fact that lightcones are ill-defined in such a theory. This effect is small in the effective field theory regime, where it is independent of the UV completion of the theory, but grows with energy and represents an unknown uncertainty for a generic UV completion. We include details of the causality uncertainty which arises in a particular UV completion, i.e. quadratic gravity. We describe how the mechanisms uncovered in the effective field theory treatment, and some of those in quadratic gravity, could be common features of quantum gravity.
format	article
author	John F. Donoghue Gabriel Menezes
author_facet	John F. Donoghue Gabriel Menezes
author_sort	John F. Donoghue
title	Causality and gravity
title_short	Causality and gravity
title_full	Causality and gravity
title_fullStr	Causality and gravity
title_full_unstemmed	Causality and gravity
title_sort	causality and gravity
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/b6c4b82bf38248ae9ee9785c8667adbc
work_keys_str_mv	AT johnfdonoghue causalityandgravity AT gabrielmenezes causalityandgravity
_version_	1718442274566701056

Causality and gravity

Ejemplares similares