Hawking Radiation, Covariant Boundary Conditions and Vacuum States

Details Hawking Radiation, Covariant Boundary Conditions and Vacuum States Hawking Radiation, Covariant Boundary Conditions and Vacuum States

2008-10-31

arxiv.org/abs/0810.5683v2

Phys.Rev.D79:084035,2009

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, no figures, minor changes, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.79.084035

The basic characteristics of the covariant chiral current $$ and the covariant chiral energy-momentum tensor $$ are obtained from a chiral effective action. These results are used to justify the covariant boundary condition used in recent approaches \cite{Isowilczek,Isoumtwilczek,shailesh,shailesh2,Banerjee} of computing the Hawking flux from chiral gauge and gravitational anomalies. We also discuss a connection of our results with the conventional calculation of nonchiral currents and stress tensors in different (Unruh, Hartle-Hawking and Boulware) states.

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