Gravitational entropy of Kerr black holes

PEREZ D.; ROMERO, GUSTAVO E

Congreso; Second Argentinian-Brazilian Meeting GRACO 2; 2014

The gravitational entropy of a Kerr black hole is calculated using aclassical estimator based on the Bel-Robinson tensor, which has been recentlyproposed by Clifton, Ellis, and Tavakol. We prove that, in the frame we consider,Clifton et al.?s estimator does not reproduce the Bekenstein-Hawking entropy ofa Kerr black hole.