Volume 463 - Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2023) - Workshop on Quantum Gravity, Strings and the Swampland
Black hole thermodynamics in natural variables: the BTZ case
K. Hristov* and R.G. Pozzi
*: corresponding author
Full text: pdf
Published on: July 31, 2024
Abstract
It has been recently shown for a wide range of black hole solutions in 4 and 5 dimensions that it is useful to reorganize the conventional thermodynamics on the inner and outer horizons in terms of left- and right-moving variables. The insight of arXiv:2304.07320 regarding the split of variables was loosely inspired by the example of the BTZ black hole and the corresponding dual CFT2 thermodynamics governed by the Cardy formula. Here we revisit the BTZ case and its generalizations in 3d gravity theories with higher derivative corrections, and show formally the applicability of the newly defined variables and their direct relation to the Cardy formula, which is not a priori guaranteed.
DOI: https://doi.org/10.22323/1.463.0237
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