110 citations · 522 across the 24 of their papers we have counts for
24 papers
Membrane Instantons from Toda Field Theory
Ulrich Theis
Four-dimensional quaternion-Kaehler metrics with an isometry are determined by solutions to the SU() Toda equation. We set up a perturbation theory to construct approximate…
Quantum Corrections in String Compactifications on SU(3) Structure Geometries
Mariana Grana, Jan Louis, Ulrich Theis +1
We investigate quantum corrections to the classical four-dimensional low-energy effective action of type II string theory compactified on SU(3) structure geometries. Various method…
Free Lunch from T-Duality
Ulrich Theis
We consider a simple method of generating solutions to Einstein gravity coupled to a dilaton and a 2-form gauge potential in n dimensions, starting from an arbitrary (n-m)-dimensio…
Membrane instantons from mirror symmetry
Daniel Robles-Llana, Frank Saueressig, Ulrich Theis +1
We use mirror symmetry to determine and sum up a class of membrane instanton corrections to the hypermultiplet moduli space metric arising in Calabi-Yau threefold compactifications…
Orientifolding in N=2 Superspace
Daniel Robles-Llana, Martin Rocek, Frank Saueressig +2
We discuss orientifold projections on superspace effective actions for hypermultiplets. We present a simple and new mechanism that allows one to find the Kahler potential and compl…
Nonperturbative corrections to 4D string theory effective actions from SL(2,Z) duality and supersymmetry
Daniel Robles-Llana, Martin Rocek, Frank Saueressig +2
We find the D(-1) and D1-brane instanton contributions to the hypermultiplet moduli space of type IIB string compactifications on Calabi-Yau threefolds. These combine with known pe…