Hawking radiation from covariant anomalies in 2+1 dimensional black holes

Abstract

In an insightful approach, Robinson and Wilczek proposed that Hawking radiation can be obtained as the compensation of a breakdown of general covariance and gauge invariance and the radiation is a black body radiation at Hawking temperature. We apply this method to two types of black holes in three dimensional spacetime, which share the general form of the metric in that the $tt$ component of the metric is not inverse of the $rr$ component of the metric. First one is the warped $Ad{S}_3$ black hole in three dimensional topologically massive gravity with negative cosmological constant, and second one is the charged rotating black hole in three dimensions.

16 pages, 2 figures

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• Thermodynamics and Hawking radiation of five-dimensional rotating charged Gödel black holes
• Entropy and Temperature From Black-Hole/Near-Horizon-CFT Duality
• A Near Horizon CFT Dual for Kerr-Newman-$AdS$
• Hawking Radiation of Fermionic Field and Anomaly in 2+1 Dimensional Black Holes
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• Anomaly analysis of Hawking radiation from 2+1 dimensional spinning black hole
• Field theory aspects of cosmology and black holes