The world-sheet description of A and B branes revisited

Details The world-sheet description of A and B branes revisited The world-sheet description of A and B branes revisited

2007-09-24

arxiv.org/abs/0709.3733v1

JHEP0711:061,2007

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 32 pages

Scientific paper

10.1088/1126-6708/2007/11/061

We give a manifest supersymmetric description of A and B branes on Kahler manifolds using a completely local N=2 superspace formulation of the world-sheet nonlinear sigma-model in the presence of a boundary. In particular, we show that an N=2 superspace description of type A boundaries is possible, at least when the background is Kahler. This leads to an elegant and concrete setting for studying coisotropic A branes. Here, apgesan important role is played by the boundary potential, whose precise physical meaning remains to be fully understood. Duality transformations relating A and B branes in the presence of isometries are studied as well.

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