# Black hole thermodynamics: general relativity and beyond

@article{Sarkar2019BlackHT,
title={Black hole thermodynamics: general relativity and beyond},
author={Sudipta Sarkar},
journal={General Relativity and Gravitation},
year={2019},
volume={51},
pages={1-28}
}
• Sudipta Sarkar
• Published 1 May 2019
• Physics, Education
• General Relativity and Gravitation
Black holes have often provided profound insights into the nature of gravity and the structure of space–time. The study of the mathematical properties of black objects is a major research theme of contemporary theoretical physics. This review presents a comprehensive survey of the various versions of the first law and second law of black hole mechanics in general relativity and beyond. The emphasis is to understand how these laws can constrain the physics beyond general relativity.
15 Citations
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This paper investigates the second law of the black holes in Lovelock gravity sourced by a conformally coupled scalar field under the first-order approximation when the perturbation matter fields satisfy the null energy condition and shows that this law obeys a linearized second law.
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Journal of High Energy Physics
• 2020
This paper investigates the second law of the black holes in Lovelock gravity sourced by a conformally coupled scalar field under the first-order approximation when the perturbation matter fields satisfy the null energy condition and shows that this law obeys a linearized second law.
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Recent gravitational wave observation based on the data from GW150914 has conﬁrmed Hawking’s area theorem and estimated the increase in total horizon area during a merger process of two Kerr black
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Abstract This work extends the proof of a local version of the linearized second law involving an entropy current with non-negative divergence by including the arbitrary non-minimal coupling of

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