452 citations · 9.4k across the 177 of their papers we have counts for
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Twisted brane charges for non-simply connected groups
Matthias R Gaberdiel, Terry Gannon
The charges of the twisted branes for strings on the group manifold SU(n)/Z_d are determined. To this end we derive explicit (and remarkably simple) formulae for the relevant NIM-r…
Bulk induced boundary perturbations
Stefan Fredenhagen, Matthias R. Gaberdiel, Christoph A. Keller
The influence of closed string moduli on the D-brane moduli space is studied from a worldsheet point of view. Whenever a D-brane cannot be adjusted to an infinitesimal change of th…
The logarithmic triplet theory with boundary
Matthias R Gaberdiel, Ingo Runkel
The boundary theory for the c=-2 triplet model is investigated in detail. In particular, we show that there are four different boundary conditions that preserve the triplet algebra…
Generalised N=2 permutation branes
Stefan Fredenhagen, Matthias R. Gaberdiel
Generalised permutation branes in products of N=2 minimal models play an important role in accounting for all RR charges of Gepner models. In this paper an explicit conformal field…
Matrix factorisations and D-branes on K3
Ilka Brunner, Matthias R. Gaberdiel, Christoph A. Keller
D-branes on K3 are analysed from three different points of view. For deformations of hypersurfaces in weighted projected space we use geometrical methods as well as matrix factoris…