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25 September 2022
 
  » arxiv » 1011.6442

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Surprises in the Evaporation of 2-Dimensional Black Holes
Abhay Ashtekar ; Frans Pretorius ; Fethi M. Ramazanoğlu ;
Date 30 Nov 2010
AbstractQuantum evaporation of Callen-Giddings-Harvey-Strominger (CGHS) black holes is analyzed in the mean field approximation. The resulting semi-classical theory incorporates back reaction. Detailed analytical and numerical calculations show that, while some of the assumptions underlying the standard evaporation paradigm are borne out, several are not. Furthermore, if the black hole is initially macroscopic, the evaporation process exhibits remarkable universal properties. Although the literature on CGHS black holes is quite rich, these features had escaped previous analyses, in part because of lack of required numerical precision, and in part because certain properties and symmetries of the model were not recognized. Finally, our results provide support for the full quantum scenario recently developed by Ashtekar, Taveras and Varadarajan.
Source arXiv, 1011.6442
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