%0 Journal Article
%T Semiclassical Extremal Blackholes
%A Sandip P. Trivedi
%J Physics
%D 1992
%I arXiv
%R 10.1103/PhysRevD.47.4233
%X Extremal black holes are studied in a two dimensional model motivated by a dimensional reduction from four dimensions. Their quantum corrected geometry is calculated semiclassically and a mild singularity is shown to appear at the horizon. Extensions of the geometry past the horizon are not unique but there are continuations free from malevolent singularities. A few comments are made about the relevance of these results to four dimensions and to the study of black hole entropy and information loss.
%U http://arxiv.org/abs/hep-th/9211011v2