Limits of JT gravity
High Energy Physics - Theory
2022-02-07 v3 General Relativity and Quantum Cosmology
Abstract
We construct various limits of JT gravity, including Newton-Cartan and Carrollian versions of dilaton gravity in two dimensions as well as a theory on the three-dimensional light cone. In the BF formulation our boundary conditions relate boundary connection with boundary scalar, yielding as boundary action the particle action on a group manifold or some Hamiltonian reduction thereof. After recovering in our formulation the Schwarzian for JT, we show that AdS-Carroll gravity yields a twisted warped boundary action. We comment on numerous applications and generalizations.
Cite
@article{arxiv.2011.13870,
title = {Limits of JT gravity},
author = {Daniel Grumiller and Jelle Hartong and Stefan Prohazka and Jakob Salzer},
journal= {arXiv preprint arXiv:2011.13870},
year = {2022}
}
Comments
41 pages, 3 figures, 1 table; v2: Matches published version + Footnote 11; v3: Corrected typo in Carrollian/Galilean generalized dilaton potential