TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.17.2.051
TI  - Closed universes in two dimensional gravity
PY  - 2024/08/14
UR  - https://scipost.org/SciPostPhys.17.2.051
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 17
IS  - 2
SP  - 051
A1  - Usatyuk, Mykhaylo
AU  - Wang, Zi-Yue
AU  - Zhao, Ying
AB  - 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.
ER  -

@Article{10.21468/SciPostPhys.17.2.051,
	title={{Closed universes in two dimensional gravity}},
	author={Mykhaylo Usatyuk and Zi-Yue Wang and Ying Zhao},
	journal={SciPost Phys.},
	volume={17},
	pages={051},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.17.2.051},
	url={https://scipost.org/10.21468/SciPostPhys.17.2.051},
}