Black Hole from Black Hole in Two Dimensions

Details Black Hole from Black Hole in Two Dimensions Black Hole from Black Hole in Two Dimensions

1993-02-08

arxiv.org/abs/hep-th/9302024v1

Physics

High Energy Physics

High Energy Physics - Theory

NDA-FP-10/93, OCHA-PP-33 pp13 LATEX

Scientific paper

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.

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