Duality and BPS spectra in N=2 supersymmetric QCD

Details Duality and BPS spectra in N=2 supersymmetric QCD Duality and BPS spectra in N=2 supersymmetric QCD

1996-11-04

arxiv.org/abs/hep-th/9611012v2

Nucl.Phys.Proc.Suppl. 55B (1997) 245-252

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, to appear in the proceedings of the ICTP '96 spring workshop on string theory, gauge theory and quantum gravity (Nucl

Scientific paper

10.1016/S0920-5632(97)00085-6

I review, with some pedagogy, two different approaches to the computation of BPS spectra in N=2 supersymmetric QCD with gauge group SU(2). The first one is semiclassical and has been widely used in the literature. The second one makes use of constraints coming from the non perturbative, global structure of the Coulomb branch of these theories. The second method allows for a description of discontinuities in the BPS spectra at strong coupling, and should lead to accurate test of duality conjectures in N=2 theories.

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