Extended black hole thermodynamics from extended Iyer-Wald formalism

Fuente: arXiv
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Autori principali: Xiao, Yong, Tian, Yu, Liu, Yu-Xiao
Natura: Preprint
Pubblicazione: 2023
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author Xiao, Yong
Tian, Yu
Liu, Yu-Xiao
author_facet Xiao, Yong
Tian, Yu
Liu, Yu-Xiao
contents In recent years, there has been significant interest in the field of extended black hole thermodynamics, where the cosmological constant and/or other coupling parameters are treated as thermodynamic variables. Drawing inspiration from the Iyer-Wald formalism, which reveals the intrinsic and universal structure of conventional black hole thermodynamics, we illustrate that a proper extension of this formalism also unveils the underlying theoretical structure of extended black hole thermodynamics. As a remarkable consequence, for any gravitational theory described by a diffeomorphism invariant action, it is always possible to construct a consistent extended thermodynamics using this extended formalism.
format Preprint
id arxiv_https___arxiv_org_abs_2308_12630
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Extended black hole thermodynamics from extended Iyer-Wald formalism
Xiao, Yong
Tian, Yu
Liu, Yu-Xiao
General Relativity and Quantum Cosmology
High Energy Physics - Theory
In recent years, there has been significant interest in the field of extended black hole thermodynamics, where the cosmological constant and/or other coupling parameters are treated as thermodynamic variables. Drawing inspiration from the Iyer-Wald formalism, which reveals the intrinsic and universal structure of conventional black hole thermodynamics, we illustrate that a proper extension of this formalism also unveils the underlying theoretical structure of extended black hole thermodynamics. As a remarkable consequence, for any gravitational theory described by a diffeomorphism invariant action, it is always possible to construct a consistent extended thermodynamics using this extended formalism.
title Extended black hole thermodynamics from extended Iyer-Wald formalism
topic General Relativity and Quantum Cosmology
High Energy Physics - Theory
url https://arxiv.org/abs/2308.12630