2001/12/26 by Shin'ichi Nojiri, Sergei D. Odintsov, Nojiri, Shin'ichi +1
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #gr-qc #hep-th
paper · pdf · doi:10.48550/arxiv.gr-qc/0112066
LaTeX file 7pages, to appear in the Proceedings of the ``1st Mexican Meeting on Mathematical and Experimental Physics", held at El Colegio Nacional, 10-14 September, 2001
arxiv created 2001/12/26 · arxiv updated 2009/11/30
We investigate the Schwarzschild-Anti-deSitter (SAdS) and SdS BH thermodynamics in 5d higher derivative gravity. The interesting feature of higher derivative gravity is the possibility for negative (or zero) SdS (or SAdS) BH entropy which depends on the parameters of higher derivative terms. The appearence of negative entropy may indicate a new type instability where a transition between SdS (SAdS) BH with negative entropy to SAdS (SdS) BH with positive entropy would occur or where definition of entropy should be modified.