SU(2) WZW D-branes and quantized worldvolume U(1) flux on S^2

Details SU(2) WZW D-branes and quantized worldvolume U(1) flux on S^2 SU(2) WZW D-branes and quantized worldvolume U(1) flux on S^2

2000-05-16

arxiv.org/abs/hep-th/0005148v2

Mod.Phys.Lett. A15 (2000) 2069-2078

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Latex, several corrections (the previous version was not approved by the first two authors)

Scientific paper

10.1142/S021773230000270X

We discuss possible D-brane configurations on SU(2) group manifolds in the sigma model approach. When we turn the boundary conditions of the spacetime fields into the boundary gluing conditions of chiral currents, we find that for all D-branes except the spherical D2-branes, the gluing matrices R^a_{b} depend on the fields, so the chiral Kac-Moody symmetry is broken, but conformal symmetry is maintained. Matching the spherical D2-branes derived from the sigma model with those from the boundary state approach we obtain a U(1) field strength that is consistent with flux quantization.

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