Quantum hair and quantum gravity

Sidney Coleman; Lawrence M. Krauss; John Preskill; Frank Wilczek

doi:10.1007/BF00756870

Quantum hair and quantum gravity

Sidney Coleman, Lawrence M. Krauss, John Preskill, Frank Wilczek

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

A black hole may carry quantum numbers that are not associated with massless gauge fields, contrary to the spirit of the "no-hair" theorems. The "quantum hair" is invisible in the classical limit, but measurable via quantum interference experiments. Quantum hair alters the temperature of the radiation emitted by a black hole. It also induces non-zero expectation values for fields outside the event horizon; these expectation values are non-perturbative in ℏ, and decay exponentially far from the hole. The existence of quantum hair demonstrates that a black hole can have an intricate quantum-mechanical structure that is completely missed by standard semiclassical theory.

Original language	English (US)
Pages (from-to)	9-16
Number of pages	8
Journal	General Relativity and Gravitation
Volume	24
Issue number	1
DOIs	https://doi.org/10.1007/BF00756870
State	Published - Jan 1992
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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author = "Sidney Coleman and Krauss, {Lawrence M.} and John Preskill and Frank Wilczek",

year = "1992",

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AB - A black hole may carry quantum numbers that are not associated with massless gauge fields, contrary to the spirit of the "no-hair" theorems. The "quantum hair" is invisible in the classical limit, but measurable via quantum interference experiments. Quantum hair alters the temperature of the radiation emitted by a black hole. It also induces non-zero expectation values for fields outside the event horizon; these expectation values are non-perturbative in ℏ, and decay exponentially far from the hole. The existence of quantum hair demonstrates that a black hole can have an intricate quantum-mechanical structure that is completely missed by standard semiclassical theory.

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Quantum hair and quantum gravity

Abstract

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