Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation

We describe timelike linear dilaton backgrounds of supercritical string theories as time-dependent Dynamical Cobordisms in string theory, with their spacelike singularity as a boundary defining the beginning of time. We propose and provide compelling evidence that its microscopic interpretation corr...

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Detalhes bibliográficos
Autores: Angius, Roberta, Delgado, Matilde Anne, Uranga Urteaga, Ángel María
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/707375
Acesso em linha:http://hdl.handle.net/10486/707375
https://dx.doi.org/10.1007/JHEP08(2022)285
Access Level:acceso abierto
Palavra-chave:Bosonic Strings
String and Brane Phenomenology
Tachyon
Física
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spelling Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensationAngius, RobertaDelgado, Matilde AnneUranga Urteaga, Ángel MaríaBosonic StringsString and Brane PhenomenologyTachyonFísicaWe describe timelike linear dilaton backgrounds of supercritical string theories as time-dependent Dynamical Cobordisms in string theory, with their spacelike singularity as a boundary defining the beginning of time. We propose and provide compelling evidence that its microscopic interpretation corresponds to a region of (a strong coupling version of) closed tachyon condensation. We argue that this beginning of time is closely related to (and shares the same scaling behaviour as) the bubbles of nothing obtained in a weakly coupled background with lightlike tachyon condensation. As an intermediate result, we also provide the description of the latter as lightlike Dynamical CobordismThis work is supported through the grants CEX2020-001007-S and PGC2018- 095976-B-C21, funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe. The work by R.A. is supported by the grant BESST-VACUA of CSIC. The work by M.D. is supported by the FPI gran no. FPI SEV-2016-0597-19-3 from Spanish National Research Agency from the Ministry of Science and InnovationSpringerDepartamento de Física TeóricaFacultad de Ciencias20222022-08-29research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/707375https://dx.doi.org/10.1007/JHEP08(2022)285reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7073752026-06-23T12:46:27Z
dc.title.none.fl_str_mv Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
title Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
spellingShingle Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
Angius, Roberta
Bosonic Strings
String and Brane Phenomenology
Tachyon
Física
title_short Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
title_full Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
title_fullStr Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
title_full_unstemmed Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
title_sort Dynamical Cobordism and the beginning of time: supercritical strings and tachyon condensation
dc.creator.none.fl_str_mv Angius, Roberta
Delgado, Matilde Anne
Uranga Urteaga, Ángel María
author Angius, Roberta
author_facet Angius, Roberta
Delgado, Matilde Anne
Uranga Urteaga, Ángel María
author_role author
author2 Delgado, Matilde Anne
Uranga Urteaga, Ángel María
author2_role author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv Bosonic Strings
String and Brane Phenomenology
Tachyon
Física
topic Bosonic Strings
String and Brane Phenomenology
Tachyon
Física
description We describe timelike linear dilaton backgrounds of supercritical string theories as time-dependent Dynamical Cobordisms in string theory, with their spacelike singularity as a boundary defining the beginning of time. We propose and provide compelling evidence that its microscopic interpretation corresponds to a region of (a strong coupling version of) closed tachyon condensation. We argue that this beginning of time is closely related to (and shares the same scaling behaviour as) the bubbles of nothing obtained in a weakly coupled background with lightlike tachyon condensation. As an intermediate result, we also provide the description of the latter as lightlike Dynamical Cobordism
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-08-29
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/707375
https://dx.doi.org/10.1007/JHEP08(2022)285
url http://hdl.handle.net/10486/707375
https://dx.doi.org/10.1007/JHEP08(2022)285
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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