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15 papers · 1 filter
Numerical Simulations of an SU(2)_L x SU(2)_R-symmetric Higgs-Yukawa Model on the QUADRICS Q16
M, :, Plagge +1
We report on our work on the SU(2)_L x SU(2)_R symmetric Higgs Yukawa Model with mirror fermion action. Our model describes a fermion Higgs system in the limit of vanishing gauge c…
Improved actions, the perfect action, and scaling by perturbation theory in Wilsons renormalization group: the two dimensional -invariant non linear -model in the hierarchical approximation
C. Wieczerkowski, Y. Xylander
We propose a method using perturbation theory in the running coupling constant and the idea of scaling to determine improved actions for lattice field theories combining Wilson's r…
Canonical Demon Monte Carlo Renormalization Group
M. Hasenbusch, K. Pinn, C. Wieczerkowski
We describe a method to compute renormalized coupling constants in a Monte Carlo renormalization group calculation. It can be used, e.g., for lattice spin or gauge models. The basi…
Rough Interfaces Beyond the Gaussian Approximation
M. Caselle, F. Gliozzi, R. Fiore +3
We compare predictions of the Capillary Wave Model with Monte Carlo results for the energy gap and the interface energy of the 3D Ising model in the scaling region. Our study revea…
Hierarchical renormalization goup fixed points
A. Pordt
Hierarchical renormalization group transformations are related to non-associative algebras. Non-trivial infrared fixed points are shown to be solutions of polynomial equations. At…
Conformal blocks on elliptic curves and the Knizhnik--Zamolodchikov--Bernard equations
Giovanni Felder, Christian Wieczerkowski
We give an explicit description of the vector bundle of WZW conformal blocks on elliptic curves with marked points as subbundle of a vector bundle of Weyl group invariant vector va…