TY - JOUR

T1 - Superstrings in 2D backgrounds with R-R flux and new extremal black holes

AU - Berkovits, Nathan

AU - Gukov, Sergei

AU - Vallilo, Brenno Carlini

N1 - Funding Information:
We are grateful to C.G. Callan, O. Chandı́a, A.T. Filippov, G.T. Horowitz, J. Maldacena, D. Nedel, R. Plesser, H. Ooguri, V. Rivelles, J.H. Schwarz, N. Seiberg, S. Shenker, A. Strominger, C. Vafa, and E. Witten for useful discussions and comments. The work of N.B. is supported in part by CNPq grant 300256/94-9, Pronex 66.2002/1998-9, and FAPESP grant 99/12763-0. This research was partially conducted during the period N.B. served as a Clay Mathematics Institute Prize Fellow and S.G. served as a Clay Mathematics Institute Long-Term Prize Fellow. The work of S.G. is also supported in part by the Caltech Discovery Fund, NSF grant No. PHY99-07949, grant RFBR No. 01-02-17488, and the Russian President's grant No. 00-15-99296. The work of B.C.V. is supported by FAPESP grant No 00/02230-3. N.B. and S.G. are grateful to the California Institute of Technology, where part of this work was done, for hospitality.

PY - 2001/10/29

Y1 - 2001/10/29

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0000949201&partnerID=8YFLogxK

U2 - 10.1016/S0550-3213(01)00413-8

DO - 10.1016/S0550-3213(01)00413-8

M3 - Article

AN - SCOPUS:0000949201

SN - 0550-3213

VL - 614

SP - 195

EP - 232

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 1-2

ER -