1993/02/08 by Shin'ichi Nojiri, Shin’ichi Nojiri, Ichiro Oda +2
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Noncommutative and Quantum Gravity Theories #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9302024
NDA-FP-10/93, OCHA-PP-33 pp13 LATEX
arxiv created 1993/02/08 · openalex publication_date 1993/02/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a new class of quantum two dimensional dilaton gravity model, which is described by SL(2,R)/U(1) gauged Wess-Zumino-Witten model deformed by (1,1)-operator. We analyze the model by 1 \over k expansion (k is the level of SL(2,R) Wess-Zumino-Witten model) and we find that the curvature singularity does not appear when k is large and the Bondi mass is bounded from below. Furthermore, the rate of the Hawking radiation in the quantum black hole created by shock wave goes to zero asymptotically and the radiation stops when the Bondi mass vanishes.