We propose defect lines as a useful tool in the study of bulk perturbations of conformal field theory, in particular in the analysis of the induced renormalisation group flows of boundary conditions. As a concrete example we study 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 Show more
Journal / seriesJHEP
PublisherInstitute of Physics
SubjectRenormalization Group; Topological Field Theories; D-Branes
Organisational unit03785 - Brunner, Ilka (EURYI-Stipendiat)
NotesReceived 17 December 2007, accepted for publication 18 March 2008.
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