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Superstrings in 2D Backgrounds with R-R Flux and New Extremal Black Holes

Nathan Berkovits·Sergei Gukov·Brenno Carlini Vallilo
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Abstract

The hybrid formalism is used to quantize the superstring compactified to two-dimensional target-space in a manifestly spacetime supersymmetric manner. A quantizable sigma model action is then constructed for the Type II superstring in curved two-dimensional supergravity backgrounds which can include Ramond-Ramond flux. Such curved backgrounds include Calabi-Yau four-fold compactifications with Ramond-Ramond flux, and new extremal black hole solutions in two-dimensional 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.

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Nathan Berkovits, Sergei Gukov, Brenno Carlini Vallilo. 2001-09-07. Superstrings in 2D Backgrounds with R-R Flux and New Extremal Black Holes. https://doi.org/10.1016/s0550-3213(01)00413-8

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