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Lessons of quantum 2D dilaton gravity

1994/11/01 by S. P. de Alwis, S.P. de Alwis, D. A. MacIntire +1 · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Dilaton #Noncommutative and Quantum Gravity Theories #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum cosmology #Quantum gravity #Semiclassical gravity #Semiclassical physics #WKB approximation #gr-qc #hep-th

paper · pdf · doi:10.1016/0370-2693(94)01549-r

published in Physics Letters B 344(1-4), 110-116 (Elsevier BV) · 13 pages, phyzzx

arxiv created 1994/11/01 · openalex publication_date 1995/01/01 · arxiv updated 2010/11/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

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.

Citations