113 citations · 326 across the 11 of their papers we have counts for
11 papers
Lifting U-dualities
K. Koepsell, F. Roose
We present a novel global E_7(7) symmetry in five-dimensional maximal supergravity as well as an E_8(8) symmetry in d=4. These symmetry groups which are known to be present after r…
Boundary states and non-abelian orbifolds
Frederik Roose
In this note the open string partition function is analyzed carefully in a way to reveal the group-theoretical aspects. For the simple cases of ADE orbifolds with regular Chan-Pato…
Anomalous couplings of type 0 D-branes
Marco Billo', Ben Craps, Frederik Roose
Closed type 0 string theories and their D-branes are introduced. The full Wess-Zumino action of these D-branes is derived. The analogy with type II is emphasized throughout the arg…
Anomalous couplings of non-BPS D-branes
Marco Billo', Ben Craps, Frederik Roose
Non-BPS type II D-branes couple to R-R potentials via an action that, upon tachyon condensation, gives rise to the Wess-Zumino action of BPS D-branes.
Ramond-Ramond couplings of non-BPS D-branes
Marco Billo', Ben Craps, Frederik Roose
We study how non-BPS type II D-branes couple to R-R potentials. Upon tachyon condensation the couplings we find give rise to the Wess-Zumino action of BPS D-branes.
NS fivebranes in type 0 string theory
Ben Craps, Frederik Roose
The massless degrees of freedom of type 0 NS5-branes are derived. A non-chiral, purely bosonic spectrum is found in both type 0A and 0B. This non-chirality is confirmed by a one-lo…