493 citations · 1.6k across the 40 of their papers we have counts for
3 papers · 1 filter
The RR charges of A-type Gepner models
Claudio Caviezel, Stefan Fredenhagen, Matthias R. Gaberdiel
It is shown that the RR charges of Gepner models are not all accounted for by the usual tensor product and permutation branes. In order to characterise the missing D-branes we stud…
Generalised permutation branes
Stefan Fredenhagen, Thomas Quella
We propose a new class of non-factorising D-branes in the product group GxG where the fluxes and metrics on the two factors do not necessarily coincide. They generalise the maximal…
Charges of twisted branes: the exceptional cases
Stefan Fredenhagen, Matthias R. Gaberdiel, Thomas Mettler
The charges of the twisted D-branes for the two exceptional cases (SO(8) with the triality automorphism and E_6 with charge conjugation) are determined. To this end the correspondi…