Soft black hole absorption rates as conservation laws

Soft black hole absorption rates as conservation laws

Abstract The absorption rate of low-energy, or soft, electromagnetic radiation by spherically symmetric black holes in arbitrary dimensions is shown to be fixed by conservation of energy and large gauge transformations. We interpret this result as the explicit realization of the Hawking-Perry-Stromi...

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Bibliographic Details
Main Authors: Steven G. Avery, Burkhard U.W. Schwab
Format: Article
Language:English
Published: SpringerOpen 2017-04-01
Series:Journal of High Energy Physics
Subjects:
Black Holes
Classical Theories of Gravity
Gauge Symmetry
Global Symmetries
Online Access:http://link.springer.com/article/10.1007/JHEP04(2017)053
Description
Summary:Abstract The absorption rate of low-energy, or soft, electromagnetic radiation by spherically symmetric black holes in arbitrary dimensions is shown to be fixed by conservation of energy and large gauge transformations. We interpret this result as the explicit realization of the Hawking-Perry-Strominger Ward identity for large gauge transformations in the background of a non-evaporating black hole. Along the way we rederive and extend previous analytic results regarding the absorption rate for the minimal scalar and the photon.
ISSN:1029-8479

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