One-loop partition function of gravity with leaky boundary conditions

Fuente: arXiv
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Main Authors: Grumiller, Daniel, Ruzziconi, Romain, Zwikel, Céline
Format: Preprint
Published: 2023
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author Grumiller, Daniel
Ruzziconi, Romain
Zwikel, Céline
author_facet Grumiller, Daniel
Ruzziconi, Romain
Zwikel, Céline
contents Leaky boundary conditions in asymptotically AdS spacetimes are relevant to discuss black hole evaporation and the evolution of the Page curve via the island formula. We explore the consequences of leaky boundary conditions on the one-loop partition function of gravity. We focus on JT gravity minimally coupled to a scalar field whose normalizable and non-normalizable modes are both turned on, allowing for leakiness through the AdS boundary. Classically, this yields a flux-balance law relating the scalar news to the time derivative of the mass. Semi-classically, we argue that the usual diffeomorphism-invariant measure is ill-defined, suggesting that the area-non-preserving diffeomorphisms are broken at one loop. We calculate the associated anomaly and its implication on the gravitational Gauss law. Finally, we generalize our arguments to higher dimensions and dS.
format Preprint
id arxiv_https___arxiv_org_abs_2312_06744
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle One-loop partition function of gravity with leaky boundary conditions
Grumiller, Daniel
Ruzziconi, Romain
Zwikel, Céline
High Energy Physics - Theory
General Relativity and Quantum Cosmology
Leaky boundary conditions in asymptotically AdS spacetimes are relevant to discuss black hole evaporation and the evolution of the Page curve via the island formula. We explore the consequences of leaky boundary conditions on the one-loop partition function of gravity. We focus on JT gravity minimally coupled to a scalar field whose normalizable and non-normalizable modes are both turned on, allowing for leakiness through the AdS boundary. Classically, this yields a flux-balance law relating the scalar news to the time derivative of the mass. Semi-classically, we argue that the usual diffeomorphism-invariant measure is ill-defined, suggesting that the area-non-preserving diffeomorphisms are broken at one loop. We calculate the associated anomaly and its implication on the gravitational Gauss law. Finally, we generalize our arguments to higher dimensions and dS.
title One-loop partition function of gravity with leaky boundary conditions
topic High Energy Physics - Theory
General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2312.06744