On D-branes in the Nappi-Witten and GMM gauged WZW models

Details On D-branes in the Nappi-Witten and GMM gauged WZW models On D-branes in the Nappi-Witten and GMM gauged WZW models

2002-11-18

arxiv.org/abs/hep-th/0211163v3

JHEP 0301 (2003) 059

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, harvmac

Scientific paper

10.1088/1126-6708/2003/01/059

We construct D-branes in the Nappi-Witten (NW) and Guadagnini-Martellini-Mintchev (GMM) gauged WZW models. For the $SL(2,R)\times SU(2)/U(1)\times U(1)$ NW and $SU(2)\times SU(2)/U(1)$ GMM models we present the explicit equations describing the D-brane hypersurfaces in their target spaces. In the latter case we show that the D-branes are classified according to the Cardy theorem. We also present the semiclassical mass computation and find its agreement with the CFT predictions.

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