Defects and Bulk Perturbations of Boundary Landau-Ginzburg Orbifolds

Details Defects and Bulk Perturbations of Boundary Landau-Ginzburg Orbifolds Defects and Bulk Perturbations of Boundary Landau-Ginzburg Orbifolds

2007-12-02

arxiv.org/abs/0712.0188v2

JHEP0804:001,2008

Physics

High Energy Physics

High Energy Physics - Theory

37 pages, 6 figures

Scientific paper

10.1088/1126-6708/2008/04/001

We propose defect lines as a useful tool to study bulk perturbations of conformal field theories, in particular to analyse the induced renormalisation group flows of boundary conditions. As a concrete example we investigate bulk perturbations of N=2 supersymmetric minimal models. To these perturbations we associate a special class of defects between the respective UV and IR theories, whose fusion with boundary conditions indeed reproduces the behaviour of the latter under the corresponding RG flows. v2: Some explanations added in section 4, minor changes.

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