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10 papers · 2 filters
Landau-Ginzburg orbifolds with discrete torsion
M. Kreuzer, H. Skarke
We complete the classification of (2,2) vacua that can be constructed from Landau--Ginzburg models by abelian twists with arbitrary discrete torsions. Compared to the case without…
The diagonalization method in quantum recursion theory
Karl Svozil
As quantum parallelism allows the effective co-representation of classical mutually exclusive states, the diagonalization method of classical recursion theory has to be modified. Q…
Poisson-Sigma-Models: A Generalization of 2-D Gravity Yang-Mills-Systems
P. Schaller, T. Strobl
A new class of two dimensional integrable field theories, based on the mathematical notion of Poisson manifolds, and containing gravity-Yang-Mills systems as well as the G/G gauged…
Algebraic structure of gravity in Ashtekar variables
P. A. Blaga, O. Moritsch, M. Schweda +3
The BRST transformations for gravity in Ashtekar variables are obtained by using the Maurer-Cartan horizontality conditions. The BRST cohomology in Ashtekar variables is calculated…
Yang-Mills gauge anomalies in the presence of gravity with torsion
O. Moritsch, M. Schweda, T. Sommer
The BRST transformations for the Yang-Mills gauge fields in the presence of gravity with torsion are discussed by using the so-called Maurer-Cartan horizontality conditions. With t…
A Renormalized Supersymmetry in the Topological Yang-Mills Field Theory
A. Brandhuber, O. Moritsch, M. W. de Oliveira +2
We reconsider the algebraic BRS renormalization of Witten's topological Yang-Mills field theory by making use of a vector supersymmetry Ward identity which improves the finiteness…