85 citations · 85 across the 1 of their papers we have counts for
6 papers · 1 filter
Defects and Bulk Perturbations of Boundary Landau-Ginzburg Orbifolds
Ilka Brunner, Daniel Roggenkamp
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 condi…
B-type defects in Landau-Ginzburg models
Ilka Brunner, Daniel Roggenkamp
We consider Landau-Ginzburg models with possibly different superpotentials glued together along one-dimensional defect lines. Defects preserving B-type supersymmetry can be represe…
Permutation branes and linear matrix factorisations
Håkon Enger, Andreas Recknagel, Daniel Roggenkamp
All the known rational boundary states for Gepner models can be regarded as permutation branes. On general grounds, one expects that topological branes in Gepner models can be enco…
The D-branes of SU(n)
Matthias R Gaberdiel, Terry Gannon, Daniel Roggenkamp
D-branes that appear to generate all the K-theory charges of string theory on SU(n) are constructed, and their charges are determined.
Limits and Degenerations of Unitary Conformal Field Theories
Daniel Roggenkamp, Katrin Wendland
In the present paper, degeneration phenomena in conformal field theories are studied. For this purpose, a notion of convergent sequences of CFTs is introduced. Properties of the re…
Current-Current Deformations of Conformal Field Theories, and WZW Models
Stefan Forste, Daniel Roggenkamp
Moduli spaces of conformal field theories corresponding to current-current deformations are discussed. For WZW models, CFT and sigma model considerations are compared. It is shown…