Near horizon gravitational charges
High Energy Physics - Theory
2022-10-21 v3 General Relativity and Quantum Cosmology
Abstract
In this paper, we study the near horizon symmetry and gravitational charges in the Newman-Penrose formalism. In particular we investigate the effect from topological terms. We find that the Pontryagin term and Gauss-Bonnet term have significant influence on the near horizon charges and bring interesting novel features. We show that the gravitational charge derived from a general class of topological terms including the Pontryagin term and Gauss-Bonnet term can be obtained from the ambiguities of the symplectic potential.
Keywords
Cite
@article{arxiv.2201.10308,
title = {Near horizon gravitational charges},
author = {Hai-Shan Liu and Pujian Mao},
journal= {arXiv preprint arXiv:2201.10308},
year = {2022}
}
Comments
v3: minor typos fixed