D-branes in an AdS_3 background

Abstract

We study the possible D-brane configurations in an AdS_3 x S^3 x T^4 background with a NS-NS B field. We use its WZW model description and the boundary state formalism, and we analyze the bosonic and the N=1 supersymmetric cases separately. We also discuss the corresponding classical open string sigma model. We determine the spacetime supersymmetry preserved by the supersymmetric D-brane configurations.

30 pages (substantial revision -- twice the size)

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• Geometric construction of D-branes in WZW models
• The scientific work of Sonia Stanciu