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Phys. Rev. Lett. 77, 3498–3501 (1996)

Statistical Hair on Black Holes

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Andrew Strominger
Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855
and Department of Physics, University of California, Santa Barbara, California 93106

Received 24 June 1996; published in the issue dated 21 October 1996

The Bekenstein-Hawking entropy for certain BPS-saturated black holes in string theory has recently been derived by counting internal black hole microstates at weak coupling. We argue that the black hole microstate can be measured by interference experiments even in the strong coupling region where there is clearly an event horizon. Extracting information which is naively behind the event horizon is possible due to the existence of statistical quantum hair carried by the black hole. This quantum hair arises from the arbitrarily large number of discrete gauge symmetries present in string theory.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.3498
DOI:
10.1103/PhysRevLett.77.3498
PACS:
04.70.Dy, 11.25.-w