On the hierarchy of symmetry breaking D-branes in group manifolds

Abstract

We construct the boundary WZNW functional for symmetry breaking D-branes on a group manifold which are localized along a product of a number of twisted conjugacy classes and which preserve an action of an arbitrary continuous subgroup. These branes provide a geometric interpretation for the algebraic formulation of constructing D-branes developed recently in [20]. We apply our results to obtain new symmetry breaking and non-factorizing D-branes in the background SL(2, ℝ) × SU(2). © SISSA/ISAS 2002.