On Gravitational anomaly and Hawking radiation near weakly isolated horizon

Details On Gravitational anomaly and Hawking radiation near weakly isolated horizon On Gravitational anomaly and Hawking radiation near weakly isolated horizon

2008-01-09

arxiv.org/abs/0801.1347v1

Phys.Rev.D77:124023,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages

Scientific paper

10.1103/PhysRevD.77.124023

Based on the idea of the work by Wilczek and his collaborators, we consider the gravitational anomaly near weekly isolated horizon. We find that there exists a universal choice of tortoise coordinate for any weakly isolated horizon. Under this coordinate, the leading behavior of a quite arbitrary scalar field near horizon is a 2-dimensional chiral scalar field. This means we can extend the idea of Wilczek and his collaborators to more general cases and show the relation between gravitational anomaly and Hawking radiation is a universal property of black hole horizon.

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