
Open access
Date
2010-03Type
- Journal Article
ETH Bibliography
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. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000017802Publication status
publishedExternal links
Journal / series
Journal of High Energy PhysicsVolume
Pages / Article No.
Publisher
IOP PublishingSubject
D-branes; Conformal Field Models in String Theory; Topological Field TheoriesOrganisational unit
03657 - Gaberdiel, Matthias / Gaberdiel, Matthias
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ETH Bibliography
yes
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