SciPost Submission Page
Closed universes in two dimensional gravity
by Mykhaylo Usatyuk, Zi-Yue Wang, Ying Zhao
Submission summary
| Authors (as registered SciPost users): | Ying Zhao |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2402.00098v2 (pdf) |
| Date submitted: | 2024-04-05 06:06 |
| Submitted by: | Zhao, Ying |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
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Abstract
We study closed universes in simple models of two dimensional gravity, such as Jackiw-Teiteilboim (JT) gravity coupled to matter, and a toy topological model that captures the key features of the former. We find there is a stark contrast, as well as some connections, between the perturbative and non-perturbative aspects of the theory. We find rich semi-classical physics. However, when non-perturbative effects are included there is a unique closed universe state in each theory. We discuss possible meanings and interpretations of this observation.
Current status:
In refereeing