Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-04-30
Phys.Rept.369:327-430,2002
Physics
High Energy Physics
High Energy Physics - Theory
144 pages, 16 figures; v2,v3: added refs. and corrected typos, v4: added 2 refs. and corrected typos (published version), v5:
Scientific paper
10.1016/S0370-1573(02)00267-3
The study of general two dimensional models of gravity allows to tackle basic questions of quantum gravity, bypassing important technical complications which make the treatment in higher dimensions difficult. As the physically important examples of spherically symmetric Black Holes, together with string inspired models, belong to this class, valuable knowledge can also be gained for these systems in the quantum case. In the last decade new insights regarding the exact quantization of the geometric part of such theories have been obtained. They allow a systematic quantum field theoretical treatment, also in interactions with matter, without explicit introduction of a specific classical background geometry. The present review tries to assemble these results in a coherent manner, putting them at the same time into the perspective of the quite large literature on this subject.
Grumiller Daniel
Kummer Wolfgang
Vassilevich Dmitri V.
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