IR/UV mixing, towers of species and swampland conjectures
By applying the Covariant Entropy Bound (CEB) to an EFT in a box of size 1/ΛIR one obtains that the UV and IR cut-offs of the EFT are necessarily correlated. We argue that in a theory of Quantum Gravity (QG) one should identify the UV cutoff with the ‘species scale’, and give a general algorithm to...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/720045 |
| Acceso en línea: | http://hdl.handle.net/10486/720045 https://dx.doi.org/10.1007/JHEP08(2022)217 |
| Access Level: | acceso abierto |
| Palabra clave: | Flux Compactifications string and brane phenomenology superstring vacua Física |
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IR/UV mixing, towers of species and swampland conjecturesCastellano, AlbertoHerráez, AlvaroIbáñez, Luis E.Flux Compactificationsstring and brane phenomenologysuperstring vacuaFísicaBy applying the Covariant Entropy Bound (CEB) to an EFT in a box of size 1/ΛIR one obtains that the UV and IR cut-offs of the EFT are necessarily correlated. We argue that in a theory of Quantum Gravity (QG) one should identify the UV cutoff with the ‘species scale’, and give a general algorithm to calculate it in the case of multiple towers becoming light.One then obtains an upper bound on the characteristic mass scale of the tower in terms of the IR cut-off, given by Mtower (ΛIR)2αD in Planck units, with αD = (D−2+p)/2p(D−1), where p depends on the density of states. Identifying the IR cut-off with a (non-vanishing) curvature in AdS one reproduces the statement of the AdS Distance Conjecture (ADC), also giving an explicit lower bound for the α exponent. In particular, we find that the CEB implies α ≥ 1/2 in any dimension if there is a single KK tower, both in AdS and dS vacua. However values α < 1/2 are allowed if the particle tower is multiple or has a string component. We also consider the CKN constraint coming from avoiding gravitational collapse which further requires in general α ≥ 1/D for the lightest tower. We analyse the case of the DGKT-CFI class of Type IIA orientifold models and show it has both particle and string towers below the species scale, so that a careful analysis of how the ADC is defined is needed. We find that this class of models obey but do not saturate the CEB. The UV/IR constraints found apply to both AdS and dS vacua. We comment on possible applications of these ideas to the dS Swampland conjecture as well as to the observed dS phase of the universeWe are grateful to F. Marchesano, M. Montero, A. Uranga, I. Valenzuela and M. Flory for useful discussions. This work is supported by the Spanish Research Agency (Agencia Española de Investigación) through the grants IFT Centro de Excelencia Severo Ochoa SEV-2016-0597, the grant GC2018-095976-B-C21 from MCIU/AEI/FEDER, UE and the grant PA2016-78645-P. The work of A.C. is supported by the Spanish FPI grant No. PRE2019-089790. The work of A.H. is supported by the ERC Consolidator Grant 772408-StringlandscapeSpringerDepartamento de Física TeóricaFacultad de Ciencias20222022-08-22research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/720045https://dx.doi.org/10.1007/JHEP08(2022)217reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7200452026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
IR/UV mixing, towers of species and swampland conjectures |
| title |
IR/UV mixing, towers of species and swampland conjectures |
| spellingShingle |
IR/UV mixing, towers of species and swampland conjectures Castellano, Alberto Flux Compactifications string and brane phenomenology superstring vacua Física |
| title_short |
IR/UV mixing, towers of species and swampland conjectures |
| title_full |
IR/UV mixing, towers of species and swampland conjectures |
| title_fullStr |
IR/UV mixing, towers of species and swampland conjectures |
| title_full_unstemmed |
IR/UV mixing, towers of species and swampland conjectures |
| title_sort |
IR/UV mixing, towers of species and swampland conjectures |
| dc.creator.none.fl_str_mv |
Castellano, Alberto Herráez, Alvaro Ibáñez, Luis E. |
| author |
Castellano, Alberto |
| author_facet |
Castellano, Alberto Herráez, Alvaro Ibáñez, Luis E. |
| author_role |
author |
| author2 |
Herráez, Alvaro Ibáñez, Luis E. |
| author2_role |
author author |
| dc.contributor.none.fl_str_mv |
Departamento de Física Teórica Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Flux Compactifications string and brane phenomenology superstring vacua Física |
| topic |
Flux Compactifications string and brane phenomenology superstring vacua Física |
| description |
By applying the Covariant Entropy Bound (CEB) to an EFT in a box of size 1/ΛIR one obtains that the UV and IR cut-offs of the EFT are necessarily correlated. We argue that in a theory of Quantum Gravity (QG) one should identify the UV cutoff with the ‘species scale’, and give a general algorithm to calculate it in the case of multiple towers becoming light.One then obtains an upper bound on the characteristic mass scale of the tower in terms of the IR cut-off, given by Mtower (ΛIR)2αD in Planck units, with αD = (D−2+p)/2p(D−1), where p depends on the density of states. Identifying the IR cut-off with a (non-vanishing) curvature in AdS one reproduces the statement of the AdS Distance Conjecture (ADC), also giving an explicit lower bound for the α exponent. In particular, we find that the CEB implies α ≥ 1/2 in any dimension if there is a single KK tower, both in AdS and dS vacua. However values α < 1/2 are allowed if the particle tower is multiple or has a string component. We also consider the CKN constraint coming from avoiding gravitational collapse which further requires in general α ≥ 1/D for the lightest tower. We analyse the case of the DGKT-CFI class of Type IIA orientifold models and show it has both particle and string towers below the species scale, so that a careful analysis of how the ADC is defined is needed. We find that this class of models obey but do not saturate the CEB. The UV/IR constraints found apply to both AdS and dS vacua. We comment on possible applications of these ideas to the dS Swampland conjecture as well as to the observed dS phase of the universe |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022-08-22 |
| 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/10486/720045 https://dx.doi.org/10.1007/JHEP08(2022)217 |
| url |
http://hdl.handle.net/10486/720045 https://dx.doi.org/10.1007/JHEP08(2022)217 |
| 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 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Springer |
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Springer |
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reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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