86 citations · 292 across the 22 of their papers we have counts for
6 papers · 1 filter
Computational Methods in Quantum Field Theory
Kurt Langfeld
After a brief introduction to the statistical description of data, these lecture notes focus on quantum field theories as they emerge from lattice models in the critical limit. For…
Centre Vortices in SU(3)
Alan Ó Cais, Waseem Kamleh, Kurt Langfeld +3
We investigate the effectiveness of using smearing as a means to generate a preconditioning transformation for gauge fields prior to fixing to Maximal Centre Gauge. This still leav…
Worldline Approach to Chiral Fermions
Kurt Langfeld, Gerald Dunne, Holger Gies +1
We propose to apply ``worldline numerics'' to a numerical calculation of quark determinants. The Gross-Neveu model with a U(1) chiral symmetry is considered as a first test. The wo…
Probing the ground state in gauge theories
T. Heinzl, A. Ilderton, K. Langfeld +3
We consider two very different models of the flux tube linking two heavy quarks: a string linking the matter fields and a Coulombic description of two separately gauge invariant ch…
Coulomb gauge Gribov copies and the confining potential
Tom Heinzl, Kurt Langfeld, Martin Lavelle +1
We study the approach, initiated by Marinari et al., to the static inter-quark potential based on Polyakov lines of finite temporal extent, evaluated in Coulomb gauge. We show that…
Improved actions and asymptotic scaling in lattice Yang-Mills theory
Kurt Langfeld
Improved actions in SU(2) and SU(3) lattice gauge theories are investigated with an emphasis on asymptotic scaling. A new scheme for tadpole improvement is proposed. The standard b…