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Phys. Rev. D 56, R6071–R6075 (1997)

Do static sources outside a Schwarzschild black hole radiate?

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Atsushi Higuchi
Institut für theoretische Physik, Universität Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
Department of Mathematics, University of York, Heslington, York YO1 5DD, United Kingdom

George E. A. Matsas
Instituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona 145, 01405-900-São Paulo, São Paulo, Brazil

Daniel Sudarsky
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A. Postal 70/543, México D.F. 04510, Mexico

Received 25 November 1996; published in the issue dated 15 November 1997

We show that static sources coupled to a massless scalar field in Schwarzschild spacetime give rise to emission and absorption of zero-energy particles due to the presence of Hawking radiation. This is in complete analogy with the description of the bremsstrahlung by a uniformly accelerated charge from the coaccelerated observers’ point of view. The response rate of the source is found to coincide with that in Minkowski spacetime as a function of its proper acceleration. It is interesting that this quantum result appears to reflect the classical equivalence principle.

© 1997 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.56.R6071
DOI:
10.1103/PhysRevD.56.R6071
PACS:
04.70.Dy, 04.62.+v