From BTZ Perturbations to Schwarzian Modes: A Geometrical and Perturbative Analysis

Fuente: arXiv
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Main Authors: Acito, Lucas, Sempé, Matías N.
Format: Preprint
Published: 2025
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author Acito, Lucas
Sempé, Matías N.
author_facet Acito, Lucas
Sempé, Matías N.
contents We provide a detailed derivation of the Schwarzian modes in the full geometry of the Bañados-Teitelboim-Zanelli (BTZ) black hole at finite temperature, establishing the precise conditions under which they emerge from the general solution, thereby clarifying the absence of rotational modes in the full geometry. In addition, we demonstrate that the same modes can be recovered through a purely geometric Kerr-Schild construction. This equivalent approach offers a new geometric understanding of the Schwarzian sector and highlights the correspondence between perturbative and pure geometric approaches, additionally it provides a connection with double copy.
format Preprint
id arxiv_https___arxiv_org_abs_2511_07111
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle From BTZ Perturbations to Schwarzian Modes: A Geometrical and Perturbative Analysis
Acito, Lucas
Sempé, Matías N.
High Energy Physics - Theory
General Relativity and Quantum Cosmology
We provide a detailed derivation of the Schwarzian modes in the full geometry of the Bañados-Teitelboim-Zanelli (BTZ) black hole at finite temperature, establishing the precise conditions under which they emerge from the general solution, thereby clarifying the absence of rotational modes in the full geometry. In addition, we demonstrate that the same modes can be recovered through a purely geometric Kerr-Schild construction. This equivalent approach offers a new geometric understanding of the Schwarzian sector and highlights the correspondence between perturbative and pure geometric approaches, additionally it provides a connection with double copy.
title From BTZ Perturbations to Schwarzian Modes: A Geometrical and Perturbative Analysis
topic High Energy Physics - Theory
General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2511.07111