Species scale, worldsheet CFTs and emergent geometry
Abstract We study infinite-distance limits in the moduli space of perturbative string vacua. The remarkable interplay of string dualities seems to determine a highly non-trivial dichotomy, summarized by the emergent string conjecture, by which in some duality frame either internal dimensions decompa...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP12(2024)111 |
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| author | Christian Aoufia Ivano Basile Giorgio Leone |
| author_facet | Christian Aoufia Ivano Basile Giorgio Leone |
| author_sort | Christian Aoufia |
| collection | DOAJ |
| description | Abstract We study infinite-distance limits in the moduli space of perturbative string vacua. The remarkable interplay of string dualities seems to determine a highly non-trivial dichotomy, summarized by the emergent string conjecture, by which in some duality frame either internal dimensions decompactify or a unique critical string becomes tensionless. We investigate whether this pattern persists in potentially non-geometric settings, showing that (a proxy for) the cutoff of the gravitational effective field theory in perturbative type II vacua extracted from a graviton scattering amplitude vanishes if and only if a light tower of states appears. Moreover, under some technical assumptions on the spectrum of conformal weights, the cutoff scales with the spectral gap of the internal conformal field theory in the same manner as in decompactification or emergent string limits, regardless of supersymmetry or whether the internal sector is geometric. As a byproduct, we elucidate the role of the species scale in (de)compactifications and show compatibility between effective field theory and worldsheet approaches in geometric settings with curvature. |
| format | Article |
| id | doaj-art-bf8fe15fe3ce46c79a100c9682e99955 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-bf8fe15fe3ce46c79a100c9682e999552025-01-05T12:06:35ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241213810.1007/JHEP12(2024)111Species scale, worldsheet CFTs and emergent geometryChristian Aoufia0Ivano Basile1Giorgio Leone2Instituto de Física Teórica IFT-UAM/CSICArnold-Sommerfeld Center for Theoretical Physics, Ludwig Maximilians Universität MünchenDipartimento di Fisica, Università di Torino and INFN Sezione di TorinoAbstract We study infinite-distance limits in the moduli space of perturbative string vacua. The remarkable interplay of string dualities seems to determine a highly non-trivial dichotomy, summarized by the emergent string conjecture, by which in some duality frame either internal dimensions decompactify or a unique critical string becomes tensionless. We investigate whether this pattern persists in potentially non-geometric settings, showing that (a proxy for) the cutoff of the gravitational effective field theory in perturbative type II vacua extracted from a graviton scattering amplitude vanishes if and only if a light tower of states appears. Moreover, under some technical assumptions on the spectrum of conformal weights, the cutoff scales with the spectral gap of the internal conformal field theory in the same manner as in decompactification or emergent string limits, regardless of supersymmetry or whether the internal sector is geometric. As a byproduct, we elucidate the role of the species scale in (de)compactifications and show compatibility between effective field theory and worldsheet approaches in geometric settings with curvature.https://doi.org/10.1007/JHEP12(2024)111Conformal Field Models in String TheorySuperstring VacuaEffective Field TheoriesScattering Amplitudes |
| spellingShingle | Christian Aoufia Ivano Basile Giorgio Leone Species scale, worldsheet CFTs and emergent geometry Journal of High Energy Physics Conformal Field Models in String Theory Superstring Vacua Effective Field Theories Scattering Amplitudes |
| title | Species scale, worldsheet CFTs and emergent geometry |
| title_full | Species scale, worldsheet CFTs and emergent geometry |
| title_fullStr | Species scale, worldsheet CFTs and emergent geometry |
| title_full_unstemmed | Species scale, worldsheet CFTs and emergent geometry |
| title_short | Species scale, worldsheet CFTs and emergent geometry |
| title_sort | species scale worldsheet cfts and emergent geometry |
| topic | Conformal Field Models in String Theory Superstring Vacua Effective Field Theories Scattering Amplitudes |
| url | https://doi.org/10.1007/JHEP12(2024)111 |
| work_keys_str_mv | AT christianaoufia speciesscaleworldsheetcftsandemergentgeometry AT ivanobasile speciesscaleworldsheetcftsandemergentgeometry AT giorgioleone speciesscaleworldsheetcftsandemergentgeometry |