Open AccessGravitational anomalies, Hawking radiation, and spherically symmetric black holes
Author(s) -
Elias C. Vagenas,
Saurya Das
Publication year - 2006
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2006/10/025
Subject(s) - physics , spacetime , quantum field theory in curved spacetime , gravitational anomaly , spherically symmetric spacetime , gravitation , hawking radiation , horizon , black body radiation , general covariance , black hole (networking) , mathematical physics , classical mechanics , scalar field , gravitational field , event horizon , scalar (mathematics) , theoretical physics , gravitational wave , quantum mechanics , quantum gravity , numerical relativity , radiation , geometry , astronomy , routing (electronic design automation) , computer network , routing protocol , introduction to the mathematics of general relativity , computer science , quantum , link state routing protocol , mathematics
Motivated by the recent work of Robinson and Wilczek, we evaluate thegravitational anomaly of a chiral scalar field in a Vaidya spacetime ofarbitrary mass function, and thus the outgoing flux from the time-dependenthorizon in that spacetime. We show that this flux differs from that of aperfect blackbody at a fixed temperature. When this flux is taken into account,general covariance in that spacetime is restored. We also generalize theirresults to the most general static, and spherically symmetric spacetime.Comment: 13 pages, no figure, LaTeX; (v2) rephrasing of Section 1, new results in Section 2, references updated and added. To appear in JHE
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