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- Title
Hawking radiation and near horizon universality of chiral Virasoro algebra.
- Authors
Banerjee, Rabin; Gangopadhyay, Sunandan; Kulkarni, Shailesh
- Abstract
We show that the diffeomorphism anomaly together with the trace anomaly reveal a chiral Virasoro algebra near the event horizon of a black hole. This algebra is the same irrespective of whether the anomaly is covariant or consistent, thereby manifesting its universal character and the fact that only the outgoing modes are relevant near the horizon. Our analysis therefore clarifies the role of the trace anomaly in the diffeomorphism anomaly approach [Robinson and Wilczek in Phys. Rev. Lett. 95:011303, 2005; Iso et al. in Phys. Rev. Lett. 96:151302, 2006; Banerjee and Kulkarni in Phys. Rev. D 77:024018, 2008; Gangopadhyay and Kulkarni in Phys. Rev. D 77:024038, 2008] to the Hawking radiation.
- Subjects
BLACKBODY radiation; ALGEBRA; CHIRALITY of nuclear particles; DIFFEOMORPHISMS; BLACK holes; ELECTRIC radiation; GENERAL relativity (Physics)
- Publication
General Relativity & Gravitation, 2010, Vol 42, Issue 12, p2865
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-010-1028-y