Soft black hole absorption rates as conservation laws

A bstract 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-Stro...

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Veröffentlicht in:	The journal of high energy physics 2017-04, Vol.2017 (4), p.1-25, Article 53
Hauptverfasser:	Avery, Steven G., Schwab, Burkhard U.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption ASTRONOMY AND ASTROPHYSICS Black Holes Black holes (astronomy) Classical and Quantum Gravitation Classical Theories of Gravity Conservation laws Conventions Electromagnetic radiation Elementary Particles Energy Energy conservation Gages Gauge Symmetry Gauges Global Symmetries High energy physics Mathematical analysis Photons Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory Scalars Spacetime String Theory Symmetry Transformations
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Zusammenfassung:	A bstract 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 1029-8479
DOI:	10.1007/JHEP04(2017)053