6 papers · 1 filter
Coulomb gauge studies of SU(3) Yang-Mills theory on the lattice
Aiko Voigt, Ernst-Michael Ilgenfritz, Michael Mueller-Preussker +1
We study the infrared behaviour of lattice SU(3) Yang-Mills theory in Coulomb gauge in terms of the ghost propagator, the Coulomb potential and the transversal and the time-time co…
The influence of Gribov copies on the gluon and ghost propagator
A. Sternbeck, E. -M. Ilgenfritz, M. Mueller-Preussker +1
The dependence of the gluon and ghost propagator in pure SU(3) gauge theory on the choice of Gribov copies in Landau gauge is studied. Simulations were performed on several lattice…
The gluon and ghost propagator and the influence of Gribov copies
A. Sternbeck, E. -M. Ilgenfritz, M. Mueller-Preussker +1
The dependence of the Landau gauge gluon and ghost propagators on the choice of Gribov copies is studied in pure SU(3) lattice gauge theory. Whereas the influence on the gluon prop…
The Aoki phase for N_f=2 Wilson fermions revisited
A. Sternbeck, E. -M. Ilgenfritz, W. Kerler +2
We report on a numerical reinvestigation of the Aoki phase in full lattice QCD with two flavors of unimproved Wilson fermions. For zero temperature the Aoki phase can be confirmed…
Universality, vortices and confinement: modified SO(3) lattice gauge theory at non-zero temperature
A. Barresi, G. Burgio, M. Mueller-Preussker
We investigate the adjoint SU(2) lattice gauge theory in 3+1 dimensions with the Wilson plaquette action modified by a Z(2) monopole suppression term. For the zero-twist sector we…
Compact U(1) Lattice Gauge-Higgs Theory with Monopole Suppression
Balasubramanian Krishnan, U. M. Heller, V. K. Mitrjushkin +1
We investigate a model of a U(1)-Higgs theory on the lattice with compact gauge fields but completely suppressed (elementary) monopoles. We study the model at two values of the qua…