Effective Polyakov Loop Dynamics for Finite Temperature G(2) Gluodynamics (2009)
Wellegehausen, Bjoern H., Wipf, Andreas, Wozar, Christian
Based on the strong coupling expansion we obtain effective 3-dimensional models for the Polyakov loop in finite-temperature G_2 gluodynamics. The Svetitsky-Jaffe conjecture relates the resulting...
Instanton constituents and fermionic zero modes in twisted CP(n) models (2009)
Brendel, Wieland, Bruckmann, Falk, Janssen, Lukas, Wipf, Andreas, Wozar, Christian
We construct twisted instanton solutions of CP(n) models. Generically a charge-k instanton splits into k(n+1) well-separated and almost static constituents carrying fractional topological charges and...
Numerical Investigation of the 2D N=2 Wess-Zumino Model (2008)
Wozar, Christian, Bergner, Georg, Kaestner, Tobias, Uhlmann, Sebastian, Wipf, Andreas
We study lattice formulations of the two-dimensional N=2 Wess-Zumino model with a cubic superpotential. Discretizations with and without lattice supersymmetries are compared. We observe that the...
Inverse Monte-Carlo and Demon Methods for Effective Polyakov Loop Models of SU(N)-YM (2008)
Wozar, Christian, Kaestner, Tobias, Wellegehausen, Bjoern H., Wipf, Andreas, Heinzl, Thomas
We study effective Polyakov loop models for SU(N) Yang-Mills theories at finite temperature. In particular effective models for SU(3) YM with an additional adjoint Polyakov loop potential are...
Two-Dimensional Wess-Zumino Models at Intermediate Couplings (2008)
Kaestner, Tobias, Bergner, Georg, Uhlmann, Sebastian, Wipf, Andreas, Wozar, Christian
We consider the two-dimensional N=(2,2) Wess-Zumino model with a cubic superpotential at weak and intermediate couplings. Refined algorithms allow for the extraction of reliable masses in a region...
Supersymmetric lattice models in one and two dimensions (2007)
Kaestner, Tobias, Bergner, Georg, Uhlmann, Sebastian, Wipf, Andreas, Wozar, Christian
We study and simulate N=2 supersymmetric Wess-Zumino models in one and two dimensions. For any choice of the lattice derivative, the theories can be made manifestly supersymmetric by adding...
Z_3 Polyakov Loop Models and Inverse Monte-Carlo Methods (2007)
Wozar, Christian, Kaestner, Tobias, Uhlmann, Sebastian, Wipf, Andreas, Heinzl, Thomas
We study effective Polyakov loop models for SU(3) Yang-Mills theory at finite temperature. A comprehensive mean field analysis of the phase diagram is carried out and compared to the results obtained...
Wozar, Christian, Kaestner, Tobias, Wipf, Andreas, Heinzl, Thomas
This paper concludes our efforts in describing SU(3)-Yang-Mills theories at different couplings/temperatures in terms of effective Polyakov-loop models. The associated effective couplings are...
Spectral sums of the Dirac-Wilson Operator and their relation to the Polyakov loop (2007)
Synatschke, Franziska, Wipf, Andreas, Wozar, Christian
We investigate and compute spectral sums of the Wilson lattice Dirac operator for quenched SU(3) gauge theory. It is demonstrated that there exist sums which serve as order parameters for the...
Generalized Potts-Models and their Relevance for Gauge Theories (2007)
Andreas Wipf, Thomas Heinzl, Tobias Kaestner, Christian Wozar
We study the Polyakov loop dynamics originating from finite-temperature Yang-Mills theory. The effective actions contain center-symmetric terms involving powers of the Polyakov loop, each with its...
Generalized Potts-Models and their Relevance for Gauge Theories (2006)
Wipf, Andreas, Heinzl, Thomas, Kaestner, Tobias, Wozar, Christian
We study the Polyakov loop dynamics originating from finite-temperature Yang-Mills theory. The effective actions contain center-symmetric terms involving powers of the Polyakov loop, each with its...
Phase Structure of Z(3)-Polyakov-Loop Models (2006)
Wozar, Christian, Kaestner, Tobias, Wipf, Andreas, Heinzl, Thomas, Pozsgay, Balazs
We study effective lattice actions describing the Polyakov loop dynamics originating from finite-temperature Yang-Mills theory. Starting with a strong-coupling expansion the effective action is...