Gravitational anomalies, Hawking radiation, and spherically symmetric black holes
Date
2016-01-06
Authors
Vagenas, Elias C.
Das, Saurya
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Abstract
Motivated by the recent work of Robinson and Wilczek, we evaluate the gravitational
anomaly of a chiral scalar field in a Vaidya spacetime of arbitrary mass function,
and thus the outgoing flux from the time-dependent horizon in that spacetime.
We show that this flux differs from that of a perfect blackbody at a fixed temperature.
When this flux is taken into account, general covariance in that spacetime is
restored. We also generalize their results to the most general static, and spherically
symmetric spacetime.
Description
Sherpa Romeo green journal. Open access article. Creative Commons Attribution License (CC BY 4.0) applies
Keywords
Gravitational anomaly , Schwarzschild , Vaidya metric , Black holes , Black holes in string theory , Space-time symmetries , Anomalies in field and string theory , Black holes
Citation
Vagenas, E. C., & Das, S. (2006). Gravitational anomalies, Hawking radiation, and spherically symmetric black holes. Journal of High Energy Physics, 2006(10), 025. https://doi.org/10.1088/1126-6708/2006/10/025