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Phys. Rev. Lett. 77, 2368–2371 (1996)

Counting States of Near-Extremal Black Holes

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Gary T. Horowitz and Andrew Strominger
Department of Physics, University of California, Santa Barbara, California 93106-9530

Received 20 May 1996; published in the issue dated 16 September 1996

A six-dimensional black string is considered and its Bekenstein-Hawking entropy computed. It is shown that to leading order above extremality this entropy precisely counts the number of string states with the given energy and charges. This identification implies that Hawking decay of the near-extremal black string can be analyzed in string perturbation theory and is perturbatively unitary.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.2368
DOI:
10.1103/PhysRevLett.77.2368
PACS:
04.70.Dy, 11.25.Db, 11.25.Mj