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arXiv · 0807.4637

Covariant Anomalies, Horizons and Hawking Radiation

Rabin Banerjee
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Abstract

Hawking radiation is obtained from anomalies resulting from a breaking of diffeomorphism symmetry near the event horizon of a black hole. Such anomalies, manifested as a nonconservation of the energy momentum tensor, occur in two different forms -- covariant and consistent. The crucial role of covariant anomalies near the horizon is revealed since this is the {\it only} input required to obtain the Hawking flux, thereby highlighting the universality of this effect. A brief description to apply this method to obtain thermodynamic entities like entropy or temperature is provided.

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Rabin Banerjee. 2008-07-29. Covariant Anomalies, Horizons and Hawking Radiation. https://doi.org/10.1142/s0218271808014175

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