Entropy-current for dynamical black holes in Chern-Simons theories of gravity

I Deo, P Dhivakar, N Kundu - Journal of High Energy Physics, 2023 - Springer
A bstract We construct an entropy current and establish a local version of the classical
second law of thermodynamics for dynamical black holes in Chern-Simons (CS) theories of …

Properties of Dynamical Black Hole Entropy

MR Visser, Z Yan - arXiv preprint arXiv:2403.07140, 2024 - arxiv.org
We study the first law for non-stationary perturbations of a stationary black hole whose event
horizon is a Killing horizon, that relates the first-order change in the mass and angular …

Zeroth and second laws of black hole mechanics in Einstein-Maxwell-scalar effective field theory

I Davies - Physical Review D, 2024 - APS
There has been recent progress in extending the zeroth and second laws of black hole
mechanics to gravitational effective field theories (EFTs). We generalize these results to a …

Linearised Second Law for Higher Curvature Gravity and Non-Minimally Coupled Vector Fields

AC Wall, Z Yan - arXiv preprint arXiv:2402.05411, 2024 - arxiv.org
Expanding the work of arXiv: 1504.08040, we show that black holes obey a second law for
linear perturbations to bifurcate Killing horizons, in any covariant higher curvature gravity …

Entropy current and fluid-gravity duality in Gauss-Bonnet theory

A Chandranathan, S Bhattacharyya, M Patra… - Journal of High Energy …, 2023 - Springer
A bstract Working within the approximation of small amplitude expansion, recently an
entropy current has been constructed on the horizons of dynamical black hole solution in …

Generalized entropy increase at linear order in general second-order scalar-tensor gravity

XY Wang, J Jiang - Physical Review D, 2022 - APS
Although the Wald entropy is commonly suitable for the first law of black hole
thermodynamics, whether it satisfies the second law has not been examined sufficiently. For …

[HTML][HTML] Black hole zeroth law of the Einstein-complex scalar-Gauss-Bonnet gravity

A Sang, P Zhao - Physics Letters B, 2024 - Elsevier
The zeroth law of black hole mechanics asserts that the stationary black hole has a constant
surface gravity on the event horizon. This study investigates the zeroth law within the …

Generalized Second Law for Non-minimally Coupled Matter Theories

P Dhivakar, K Jalan - arXiv preprint arXiv:2309.12782, 2023 - arxiv.org
We prove the generalized second law (GSL) for higher curvature gravity theories when the
matter sector is non-minimally coupled. The validity of our proof is in the regime of linearized …

Iyer-Wald ambiguities and gauge covariance of Entropy current in Higher derivative theories of gravity

A Kar, P Dhivakar, S Roy, B Panda… - arXiv preprint arXiv …, 2024 - arxiv.org
In [arXiv: 2105.06455, arXiv: 2206.04538], the authors have been able to argue for an ultra-
local version of the second law of black hole mechanics, for arbitrary diffeomorphism …

A classical Bousso bound for higher derivative corrections to general relativity

S Bhattacharyya, P Biswas, N Kundu - arXiv preprint arXiv:2403.16658, 2024 - arxiv.org
We prove the classical version of the covariant entropy bound (also known as the Bousso
bound) in arbitrary diffeomorphism invariant gravitational theories. We focus on theories for …