Closed universes in two dimensional gravity
Mykhaylo Usatyuk, Zi-Yue Wang, Ying Zhao
SciPost Phys. 17, 051 (2024) · published 14 August 2024
- doi: 10.21468/SciPostPhys.17.2.051
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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.
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 Mykhaylo Usatyuk,
- 2 Zi-Yue Wang,
- 1 Ying Zhao
Funders for the research work leading to this publication