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Title: Evanescent black holes

Abstract

A renormalizable theory of quantum gravity coupled to a dilaton and conformal matter in two space-time dimensions is analyzed. The theory is shown to be exactly solvable classically. Included among the exact classical solutions are configurations describing the formation of a black hole by collapsing matter. The problem of Hawking radiation and back reaction of the metric is analyzed to leading order in a 1/{ital N} expansion, where {ital N} is the number of matter fields. The results suggest that the collapsing matter radiates away all of its energy before an event horizon has a chance to form, and black holes thereby disappear from the quantum-mechanical spectrum. It is argued that the matter asymptotically approaches a zero-energy bound state'' which can carry global quantum numbers and that a unitary {ital S} matrix including such states should exist.

Authors:
 [1];  [2];  [3];  [2]
  1. (Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States))
  2. (Department of Physics, University of California, Santa Barbara, California 93106 (United States))
  3. (Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637 (United States))
Publication Date:
OSTI Identifier:
7278144
DOE Contract Number:  
AT03-76ER70023
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 45:4; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BLACK HOLES; GRAVITATIONAL COLLAPSE; BOUND STATE; COSMOLOGY; EQUATIONS OF MOTION; FOUR-DIMENSIONAL CALCULATIONS; METRICS; QUANTUM GRAVITY; QUANTUM NUMBERS; RENORMALIZATION; S MATRIX; SPACE-TIME; TWO-DIMENSIONAL CALCULATIONS; DIFFERENTIAL EQUATIONS; EQUATIONS; FIELD THEORIES; MATRICES; PARTIAL DIFFERENTIAL EQUATIONS; QUANTUM FIELD THEORY; 661310* - Relativity & Gravitation- (1992-); 661100 - Classical & Quantum Mechanics- (1992-)

Citation Formats

Callan, C.G. Jr., Giddings, S.B., Harvey, J.A., and Strominger, A. Evanescent black holes. United States: N. p., 1992. Web. doi:10.1103/PhysRevD.45.R1005.
Callan, C.G. Jr., Giddings, S.B., Harvey, J.A., & Strominger, A. Evanescent black holes. United States. doi:10.1103/PhysRevD.45.R1005.
Callan, C.G. Jr., Giddings, S.B., Harvey, J.A., and Strominger, A. Sat . "Evanescent black holes". United States. doi:10.1103/PhysRevD.45.R1005.
@article{osti_7278144,
title = {Evanescent black holes},
author = {Callan, C.G. Jr. and Giddings, S.B. and Harvey, J.A. and Strominger, A.},
abstractNote = {A renormalizable theory of quantum gravity coupled to a dilaton and conformal matter in two space-time dimensions is analyzed. The theory is shown to be exactly solvable classically. Included among the exact classical solutions are configurations describing the formation of a black hole by collapsing matter. The problem of Hawking radiation and back reaction of the metric is analyzed to leading order in a 1/{ital N} expansion, where {ital N} is the number of matter fields. The results suggest that the collapsing matter radiates away all of its energy before an event horizon has a chance to form, and black holes thereby disappear from the quantum-mechanical spectrum. It is argued that the matter asymptotically approaches a zero-energy bound state'' which can carry global quantum numbers and that a unitary {ital S} matrix including such states should exist.},
doi = {10.1103/PhysRevD.45.R1005},
journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 45:4,
place = {United States},
year = {1992},
month = {2}
}