246 citations · 524 across the 14 of their papers we have counts for
14 papers
D-branes in Nonabelian Orbifolds with Discrete Torsion
Tamas Hauer, Morten Krogh
We study IIB string theory on the orbifold R^8/Gamma with discrete torsion where Gamma is an arbitrary subgroup of U(4). We extend some previously known identities for discrete tor…
Duality and Weyl Symmetry of 7-brane Configurations
Tamas Hauer, Amer Iqbal, Barton Zwiebach
Extending earlier results on the duality symmetries of three-brane probe theories we define the duality subgroup of SL(2,Z) as the symmetry group of the background 7-branes configu…
Del Pezzo Surfaces and Affine 7-brane Backgrounds
Tamas Hauer, Amer Iqbal
A map between string junctions in the affine 7-brane backgrounds and vector bundles on del Pezzo surfaces is constructed using mirror symmetry. It is shown that the lattice of stri…
Superstring Theory on AdS_2 x S^2 as a Coset Supermanifold
N. Berkovits, M. Bershadsky, T. Hauer +2
We quantize the superstring on the AdS_2 x S^2 background with Ramond-Ramond flux using a PSU(1,1|2)/U(1) x U(1) sigma model with a WZ term. One-loop conformal invariance of the mo…
Scaling limit of the one-dimensional XXZ Heisenberg chain with easy axis anisotropy
T. Hauer, A. Rakos, F. Woynarovich
We construct the scaling limit of the easy axis XXZ chain. This limit is a subtle combination of approaching the isotropic point, and letting the lattice spacing to zero to obtain…
Uncovering Infinite Symmetries on [p,q] 7-branes: Kac-Moody Algebras and Beyond
Oliver DeWolfe, Tamas Hauer, Amer Iqbal +1
In a previous paper we explored how conjugacy classes of the modular group classify the symmetry algebras that arise on type IIB [p,q] 7-branes. The Kodaira list of finite Lie alge…