A and B branes from N=2 superspace

Details A and B branes from N=2 superspace A and B branes from N=2 superspace

2008-04-13

arxiv.org/abs/0804.2084v1

Fortsch.Phys.56:922-928,2008

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, contribution to the proceedings of the Third Workshop of the RTN project 'Constituents, Fundamental Forces and Symmet

Scientific paper

10.1002/prop.200810562

We present a manifestly supersymmetric description of A and B branes on Kaehler 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. This leads to a concrete realization of the still poorly understood coisotropic A branes. We also discuss briefly how the superspace description of a B brane provides an efficient way to compute higher loop beta-functions. In particular, we sketch how one obtains the fourth order derivative correction to the Born-Infeld action by using a beta-function method.

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