Physical process first law and increase of horizon entropy for black holes in Einstein-Gauss-Bonnet gravity
General Relativity and Quantum Cosmology
2013-05-30 v3 High Energy Physics - Theory
Abstract
We establish the physical process version of first law by studying small perturbations of a stationary black hole with regular bifurcation surface in Einstein-Gauss-Bonnet (EGB) gravity. Our result shows that when the stationary black hole is perturbed by a matter stress energy tensor and finally settles down to a new stationary state, the Wald entropy increases as long as the matter satisfies null energy condition.
Keywords
Cite
@article{arxiv.1111.3021,
title = {Physical process first law and increase of horizon entropy for black holes in Einstein-Gauss-Bonnet gravity},
author = {Ayan Chatterjee and Sudipta Sarkar},
journal= {arXiv preprint arXiv:1111.3021},
year = {2013}
}
Comments
Some more typos corrected. Accepted for publication in Phys. Rev. Lett