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APS » Journals » Phys. Rev. Lett. » Volume 61 » Issue 25
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Phys. Rev. Lett. 61, 2823–2826 (1988)

Axionic Black Holes and an Aharonov-Bohm Effect for Strings

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Mark J. Bowick
Physics Department, Syracuse University, Syracuse, New York 13244-1130

Steven B. Giddings
Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138

Jeffrey A. Harvey
Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544

Gary T. Horowitz and Andrew Strominger
Department of Physics, University of California, Santa Barbara, California 93106

Received 15 September 1988; published in the issue dated 19 December 1988

It is shown that a black hole of fixed mass can carry arbitrary axionic charge. The unique static black-hole solution is found to have vanishing axion field strength but nonvanishing potential. The axion charge cannot be detected by point particles, but can be detected by strings in a process analogous to the Aharonov-Bohm effect. It is argued that the existence of axion charge may play a significant role in the late stages of black-hole evaporation.

© 1988 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.61.2823
DOI:
10.1103/PhysRevLett.61.2823
PACS:
97.60.Lf, 03.65.Bz, 04.60.+n, 14.80.Gt
 
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