Black-hole dynamics in BHT massive gravity
High Energy Physics - Theory
2011-02-16 v1 General Relativity and Quantum Cosmology
Abstract
Using an exact Vaidya-type null-dust solution, we study the area and entropy laws for dynamical black holes defined by a future outer trapping horizon in (2+1)-dimensional Bergshoeff-Hohm-Townsend (BHT) massive gravity. We consider the theory admitting a degenerate (anti-)de Sitter vacuum and pure BHT gravity. It is shown that, while the area of a black hole decreases by the injection of a null dust with positive energy density in several cases, the Wald-Kodama dynamical entropy always increases.
Cite
@article{arxiv.1012.5048,
title = {Black-hole dynamics in BHT massive gravity},
author = {Hideki Maeda},
journal= {arXiv preprint arXiv:1012.5048},
year = {2011}
}
Comments
7 pages, 1 figure