Superstrings in 2D backgrounds with RR flux and new extremal black holes
Abstract
The hybrid formalism is used to quantize the superstring compactified to twodimensional targetspace in a manifestly spacetime supersymmetric manner. A quantizable sigma model action is then constructed for the type II superstring in curved twodimensional supergravity backgrounds which can include RamondRamond flux. Such curved backgrounds include CalabiYau fourfold compactifications with RamondRamond flux, and new extremal black hole solutions in twodimensional dilaton supergravity theory. These black hole solutions are a natural generalization of the CGHS model and might be possible to describe using a supergroup version of the SL(2, R)/ U(1) WZW model. We also study some dynamical aspects of the new black holes, such as formation and evaporation.
 Publication:

Nuclear Physics B
 Pub Date:
 October 2001
 DOI:
 10.1016/S05503213(01)004138
 arXiv:
 arXiv:hepth/0107140
 Bibcode:
 2001NuPhB.614..195B
 Keywords:

 High Energy Physics  Theory;
 General Relativity and Quantum Cosmology
 EPrint:
 47 pages, harvmac, 4 figures. v2: a reference added. v3: more references added