Superstrings in 2D backgrounds with R-R flux and new extremal black holes

Nathan Berkovits, Sergei Gukov, Brenno Carlini Vallilo

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)195-232
Number of pages38
JournalNuclear Physics B
Issue number1-2
Publication statusPublished - 29 Oct 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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