Lessons of Quantum 2D Dilaton Gravity

Details Lessons of Quantum 2D Dilaton Gravity Lessons of Quantum 2D Dilaton Gravity

1994-11-01

arxiv.org/abs/gr-qc/9411003v1

Phys.Lett.B344:110-116,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, phyzzx

Scientific paper

10.1016/0370-2693(94)01549-R

Based on the analysis of two dimensional dilaton gravity we argue that the semiclassical equations of black hole formation and evaporation should not be interpreted in terms of expectation values of operators in the exact quantum theory, but rather as WKB trajectories. Thus at the semiclassical level it does not seem possible to formulate a notion of {\it quantum mechanical} information loss.

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