Quantum hair and quantum gravity

Details Quantum hair and quantum gravity Quantum hair and quantum gravity

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gregr..24....9c&link_type=abstract

General Relativity and Gravitation, Volume 24, Issue 1, pp.9-16

Computer Science

3

Scientific paper

A black hole may carry quantum numbers that arenot 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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