The path integral of 3D gravity near extremality; or, JT gravity with defects as a matrix integral

Autor:	Maxfield, Henry, Turiaci, Gustavo J.
Rok vydání:	2020
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
DOI:	10.1007/JHEP01(2021)118
Popis:	We propose that a class of new topologies, for which there is no classical solution, should be included in the path integral of three-dimensional pure gravity, and that their inclusion solves pathological negativities in the spectrum, replacing them with a nonperturbative shift of the BTZ extremality bound. We argue that a two-dimensional calculation using a dimensionally reduced theory captures the leading effects in the near extremal limit. To make this argument, we study a closely related two-dimensional theory of Jackiw-Teitelboim gravity with dynamical defects. We show that this theory is equivalent to a matrix integral. Comment: 57 pp; v2 typos corrected, ref added and new section 3.5
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2006.11317 Zobrazit plný text záznamu View this record from Arxiv