Free energy of topologically massive gravity and flat space holography

Abstract

We calculate the free energy from the on-shell action for topologically massive gravity with negative and vanishing cosmological constant, thereby providing a first principles derivation of the free energy of Banados-Teitelboim-Zanelli (BTZ) black holes and flat space cosmologies. We summarize related recent checks of flat space holography.

arXiv comment9 pages, prepared for the proceedings of the Karl Schwarzschild meeting 2015. v2. Typo's corrected and ref's added