N=2 Supersymmetric Sigma Models and D-branes

Details N=2 Supersymmetric Sigma Models and D-branes N=2 Supersymmetric Sigma Models and D-branes

2004-04-28

arxiv.org/abs/hep-th/0404227v1

Phys.Rev. D70 (2004) 066003

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 5 figures

Scientific paper

10.1103/PhysRevD.70.066003

We study D-branes of N=2 supersymmetric sigma models. Supersymmetric nonlinear sigma models with 2-dimensional target space have D0,D1,D2-branes, which are realized as A-,B-type supersymmetric boundary conditions on the worldsheet. When we embed the models in the string theory, the Kahler potential is restricted and leads to a 2-dim black hole metric with a dilaton background. The D-branes in this model are susy cycles and consistent with the analysis of conjugacy classes. The generalized metrics with U(n) isometry is proposed and dynamics on them are realized by linear sigma models. We investigate D-branes of the linear sigma models and compare the results with those in the nonlinear sigma models.

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