Entropy of extremal warped black holes

Details Entropy of extremal warped black holes Entropy of extremal warped black holes

2009-02-10

arxiv.org/abs/0902.1566v1

Mod.Phys.Lett.A24:1485-1493,2009

Physics

High Energy Physics

High Energy Physics - Theory

11 pages

Scientific paper

10.1142/S021773230903093X

We study the entropy of extremal warped black hole obtained from the topologically massive gravity with a negative cosmological constant of $\Lambda=-1/l^2$. We compare the entropy $S_e=\pi \alpha/3G$ from the Wald formalism with $S_w=\pi l u /3G$ from the entropy function approach. These are the same if $\alpha=l u$. Also we obtain the same Cardy formula when $J_e= l^3 q$ with $J_e$ the angular momentum and $q$ the conserved quantity.

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