Bulk perturbations of N=2 branes

Details Bulk perturbations of N=2 branes Bulk perturbations of N=2 branes

2007-02-06

arxiv.org/abs/hep-th/0702036v1

JHEP 0705:087,2007

Physics

High Energy Physics

High Energy Physics - Theory

35 pages (30 pages plus title and references), 8 figures

Scientific paper

10.1088/1126-6708/2007/05/087

The evolution of supersymmetric A-type D-branes under the bulk renormalization group flow between two different N=2 minimal models is studied. Using the Landau-Ginzburg description we show that a specific set of branes decouples from the infrared theory, and we make detailed predictions for the behavior of the remaining branes. The Landau-Ginzburg picture is then checked against a direct conformal field theory analysis. In particular we construct a natural index pairing which is preserved by the RG flow, and show that the branes that decouple have vanishing index with the surviving branes.

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