Scaling in the Positive Plaquette Model and Universality in SU(2) Lattice Gauge Theory
arXiv:hep-lat/9407011 · doi:10.1016/0550-3213(94)00492-W
Abstract
We investigate universality, scaling, the beta-function and the topological charge in the positive plaquette model for SU(2) lattice gauge theory. Comparing physical quantities, like the critical temperature, the string tension, glueball masses, and their ratios, we explore the effect of a complete suppression of a certain lattice artifact, namely the negative plaquettes, for SU(2) lattice gauge theory. Our result is that this modification does not change the continuum limit, i.e., the universality class. The positive plaquette model and the standard Wilson formulation describe the same physical situation. The approach to the continuum limit given by the beta-function in terms of the bare lattice coupling, however, is rather different: the beta-function of the positive plaquette model does not show a dip like the model with standard Wilson action.
35 pages, preprint numbers FSU-SCRI-94-71 and HU Berlin-IEP-94/10
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- Gauge invariant Z_2 vortex vacuum textures and the SU(2) gluon condensate
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- Topological order and the vacuum of Yang-Mills theories
- SU(2) Lattice Gauge Theory with Logarithmic Action: Scaling and Universality
- Bulk-preventing actions for SU(N) gauge theories
- Monopoles and Vortices in the SU(2) Positive Plaquette Model
- Deconfinement from Action Restriction
- Putting centre dominance under the microscope
- Direct evidence for a Coulombic phase in monopole-suppressed SU(2) lattice gauge theory