60 citations · 164 across the 4 of their papers we have counts for
5 papers · 1 filter
One-loop and D-instanton corrections to the effective action of open string models
Maximilian Schmidt-Sommerfeld
One-loop corrections to the gauge coupling and the gauge kinetic function in certain classes of four-dimensional D-brane models are computed. It is described how to determine D-ins…
Power Towers of String Instantons for N=1 Vacua
Ralph Blumenhagen, Maximilian Schmidt-Sommerfeld
We provide arguments for the existence of novel hereinafter called poly-instanton corrections to holomorphic couplings in four-dimensional N=1 supersymmetric string compactificatio…
Gauge Thresholds and Kaehler Metrics for Rigid Intersecting D-brane Models
Ralph Blumenhagen, Maximilian Schmidt-Sommerfeld
The gauge threshold corrections for globally consistent Z2 x Z2' orientifolds with rigid intersecting D6-branes are computed. The one-loop corrections to the holomorphic gauge kine…
D-brane Instantons in 4D Supersymmetric String Vacua
Nikolas Akerblom, Ralph Blumenhagen, Dieter Lust +1
We review some aspects of D-instantons in intersecting D-brane models. In particular, we present applications of the recently proposed instanton calculus to computations of charged…
Thresholds for Intersecting D-branes Revisited
Nikolas Akerblom, Ralph Blumenhagen, Dieter Lust +1
Gauge threshold corrections for intersecting D6-brane string models on toroidal orbifold backgrounds are reconsidered. Both by dimensionally regularising the appearing open string…