Problem of time and quantum black holes

Journal Article · Sat Oct 15 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.5164· OSTI ID:7170993

de Alwis, S P; MacIntire, D A ^[1]

---

1. Department of Physics, Box 390, University of Colorado, Boulder, Colorado 80309 (United States)

We discuss the derivation of the so-called semiclassical equations for both minisuperspace and dilaton gravity. We find that there is no systematic derivation of a semiclassical theory in which quantum mechanics is formulated in a space-time that is a solution of Einstein's equations, with the expectation value of the matter stress tensor on the right-hand side. The issues involved are related to the well-known problems associated with the interpretation of the Wheeler-DeWitt equation in quantum gravity, including the problem of time. We explore the de Broglie--Bohm interpretation of quantum mechanics (and field theory) as a way of spontaneously breaking general covariance, and thereby give meaning to the equations that many authors have been using to analyze black hole evaporation. We comment on the implications for the information loss'' problem.

• DOE Contract Number: FG02-91ER40672
• OSTI ID: 7170993
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:8; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

661310* -- Relativity & Gravitation-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLACK HOLES
EINSTEIN FIELD EQUATIONS
EQUATIONS
EVAPORATION
EXPECTATION VALUE
FIELD EQUATIONS
FIELD THEORIES
INFORMATION
LOSSES
PHASE TRANSFORMATIONS
QUANTUM FIELD THEORY
QUANTUM GRAVITY
SEMICLASSICAL APPROXIMATION
SYMMETRY BREAKING
TENSORS
TIME DEPENDENCE