de Sitter JT gravity from double-scaled SYK
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918133908897792 |
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| author | Okuyama, Kazumi |
| author_facet | Okuyama, Kazumi |
| contents | 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 | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08116 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | de Sitter JT gravity from double-scaled SYK Okuyama, Kazumi High Energy Physics - Theory 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. |
| title | de Sitter JT gravity from double-scaled SYK |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.08116 |