An entropy current and the second law in higher derivative theories of gravity

Abstract We construct a proof of the second law of thermodynamics in an arbitrary diffeomorphism invariant theory of gravity working within the approximation of linearized dynamical fluctuations around stationary black holes. We achieve this by establishing the existence of an entropy current define...

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Bibliographic Details
Main Authors: Sayantani Bhattacharyya, Prateksh Dhivakar, Anirban Dinda, Nilay Kundu, Milan Patra, Shuvayu Roy
Format: Article
Language:English
Published: SpringerOpen 2021-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2021)169