paper

Remarks on type IIB pp waves with Ramond-Ramond fluxes and massive two dimensional nonlinear sigma models

arXiv:hep-th/0212017 · doi:10.1103/PhysRevD.67.046005

Abstract

We continue the study of supersymmetric type IIB pp wave solutions by Maldacena and Maoz (hep-th/0207284), who showed Ramond-Ramond five-forms can induce potential terms in the light cone string actions which are nonlinear sigma models with special holonomy target spaces. We show nonvanishing Ramond-Ramond three-forms provide extra potential terms involving Killing vectors in the string action and identify the supersymmetry requirements. In particular, in solutions with (1,1) worldsheet supersymmetry, the Killing vectors are required to be self-dual in Spin(7).

13 pages, revtex4

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