Lattice2010

Session

Parallel 56: Applications beyond QCD

18 Jun 2010, 16:40

Villasimius, Sardinia

134. Dimensional reduction and confinement from five dimensions

Francesco Knechtli (University of Wuppertal)

18/06/2010, 16:40

Applications beyond QCD

We study non-perturbatively five-dimensional gauge theories by means of the mean-field expansion on the lattice. On the anisotropic torus we show that a continuum limit can be defined where the anisotropy is a relevant parameter. The analysis of the static force supports the fact that the four-dimensional hyperplanes decouple from each other in the continuum limit. Clear signs of...

44. Center Symmetry Restoration with 2 Flavor Large N Yang-Mills in the Adjoint Representation.

Richard Galvez (Syracuse University)

18/06/2010, 17:00

Applications beyond QCD

We report on the restoration of center symmetry in two flavor large N Yang Mills lattice field theory with dynamical fermions in the adjoint representation. Numerical evidence is given to show correlators of $P_{\mu }$ tend to zero in the large N limit. Wilson fermions were employed on a $2^4$ sized lattice for a variety of bare quark masses and coupling strength. We argue that this model may...

197. Orientifold Planar Equivalence: The Quenched Meson Spectrum

Biagio Lucini (Swansea University)

18/06/2010, 17:20

Applications beyond QCD

Orientifold Planar Equivalence is a powerful analytical tool that allows us to relate certain observables (among which, meson masses) in SU($N$) gauge theory with one (anti-)symmetric Dirac flavour and $\mathcal{N}=1$ SU($N$) SUSY in the limit in which the number of colours $N$ goes to infinity. This enables us in principle to transcribe SUSY results to QCD, provided that the latter is close (in...

168. Lattice Wess-Zumino Model Simulation with GPUs

Joel Giedt (RPI)

18/06/2010, 17:40

Applications beyond QCD

We describe our studies of the lattice Wess-Zumino model with overlap type operators, using GPUs. We have checked that at one loop there is a nonrenormalization of the superpotential, and that in the simulations the simplest Ward identity of the continuum theory is satisfied to a good approximation at weak coupling.