Deformations of GR and BH thermodynamics

Krasnov, Kirill (2016) Deformations of GR and BH thermodynamics. Classical and Quantum Gravity, 33 (15). 155012/1-155012/17. ISSN 1361-6382

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Abstract

In four space–time dimensions General Relativity can be non-trivially deformed. Deformed theories continue to describe two propagating degrees of freedom, as GR. We study Euclidean black hole thermodynamics of these deformations. We use the recently developed formulation that works with connections as well as certain matrices M of auxiliary fields. We show that the black hole entropy is given by one quarter of the horizon area as measured by the Lie algebra valued two-form MF, where F is the connection curvature. This coincides with the horizon area as measured by the metric only for the case of General Relativity.

Item Type: Article
Keywords: Modified gravity, Black hole Thermodynamics, Asymptotically hyperbolic geometry
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Identification Number: 10.1088/0264-9381/33/15/155012
Depositing User: Eprints, Support
Date Deposited: 10 May 2017 07:59
Last Modified: 10 May 2017 21:44
URI: http://eprints.nottingham.ac.uk/id/eprint/42698

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