Defect perturbations in Landau-Ginzburg models
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Date
2010-03
Publication Type
Journal Article
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yes
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Abstract
Perturbations of B-type defects in Landau-Ginzburg models are considered. In particular, the effect of perturbations of defects on their fusion is analyzed in the framework of matrix factorizations. As an application, it is discussed how fusion with perturbed defects induces perturbations on boundary conditions. It is shown that in some classes of models all boundary perturbations can be obtained in this way. Moreover, a universal class of perturbed defects is constructed, whose fusion under certain conditions obey braid relations. The functors obtained by fusing these defects with boundary conditions are twist functors as introduced in the work of Seidel and Thomas.
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published
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Volume
2010 (3)
Pages / Article No.
15
Publisher
Springer
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Subject
D-branes; Conformal Field Models in String Theory; Topological Field Theories
Organisational unit
03657 - Gaberdiel, Matthias / Gaberdiel, Matthias