de Sitter JT gravity from double-scaled SYK
Abstract It is known that the double-scaled SYK model (DSSYK) reduces to JT gravity with a negative cosmological constant by zooming in on the lower edge E = – E 0 of the spectrum. We find that the de Sitter JT gravity (i.e. JT gravity with a positive cosmological constant) is reproduced from DSSYK...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-08-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP08(2025)181 |
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| _version_ | 1849226700897910784 |
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| author | Kazumi Okuyama |
| author_facet | Kazumi Okuyama |
| author_sort | Kazumi Okuyama |
| collection | DOAJ |
| description | Abstract It is known that the double-scaled SYK model (DSSYK) reduces to JT gravity with a negative cosmological constant by zooming in on the lower edge E = – E 0 of the spectrum. We find that the de Sitter JT gravity (i.e. JT gravity with a positive cosmological constant) is reproduced from DSSYK by taking a scaling limit around the upper edge E = E 0 of the spectrum. We also argue that the appearance of de Sitter JT gravity is consistent with the behavior of the classical solution of the sine dilaton gravity. |
| format | Article |
| id | doaj-art-1986f23e63d544b7b3e929ce44abc769 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-1986f23e63d544b7b3e929ce44abc7692025-08-24T11:04:51ZengSpringerOpenJournal of High Energy Physics1029-84792025-08-012025811810.1007/JHEP08(2025)181de Sitter JT gravity from double-scaled SYKKazumi Okuyama0Department of Physics, Shinshu UniversityAbstract It is known that the double-scaled SYK model (DSSYK) reduces to JT gravity with a negative cosmological constant by zooming in on the lower edge E = – E 0 of the spectrum. We find that the de Sitter JT gravity (i.e. JT gravity with a positive cosmological constant) is reproduced from DSSYK by taking a scaling limit around the upper edge E = E 0 of the spectrum. We also argue that the appearance of de Sitter JT gravity is consistent with the behavior of the classical solution of the sine dilaton gravity.https://doi.org/10.1007/JHEP08(2025)181Matrix Models2D GravityAdS-CFT Correspondence |
| spellingShingle | Kazumi Okuyama de Sitter JT gravity from double-scaled SYK Journal of High Energy Physics Matrix Models 2D Gravity AdS-CFT Correspondence |
| title | de Sitter JT gravity from double-scaled SYK |
| title_full | de Sitter JT gravity from double-scaled SYK |
| title_fullStr | de Sitter JT gravity from double-scaled SYK |
| title_full_unstemmed | de Sitter JT gravity from double-scaled SYK |
| title_short | de Sitter JT gravity from double-scaled SYK |
| title_sort | de sitter jt gravity from double scaled syk |
| topic | Matrix Models 2D Gravity AdS-CFT Correspondence |
| url | https://doi.org/10.1007/JHEP08(2025)181 |
| work_keys_str_mv | AT kazumiokuyama desitterjtgravityfromdoublescaledsyk |