Browsing Pure & Applied Mathematics (Scholarly Publications) by Sponsor "Enterprise Ireland"
Now showing items 1-9 of 9
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The 2 + 2 anisotropic Wilson gluon action with applications
(2004)A generalization of anisotropic lattices to include a 2+2 discretization is discussed. As a part of this program, we determine the one-loop correction to the gluon self-energy and analyse the restoration of Lorentz ... -
Analytic smearing of SU(3) link variables in lattice QCD
(American Physical Society, 2004)An analytic method of smearing link variables in lattice QCD is proposed and tested. The differentiability of the smearing scheme with respect to the link variables permits the use of modern Monte Carlo updating methods ... -
Dynamical fermion simulations of QCD on anisotropic lattices
(Elsevier, 2004)Simulations of QCD with two flavours of improved Wilson quarks on an anisotropic lattice are discussed. Methods for improving the performance of the Hybrid Monte Carlo (HMC) algorithm in these studies are described. -
Excitations of the torelon
(Elsevier, 2004)The excitations of gluonic flux tube in a periodic lattice are examined. Monte Carlo simulations from an anisotropic lattice are presented and the comparison with effective string models is discussed. -
Gauge theories on a 2+2 anisotropic lattice
(American Physical Society, 2003)The implementation of gauge theories on a four-dimensional anisotropic lattice with two distinct lattice spacings is discussed, with special attention to the case where two axes are finely and two axes are coarsely discretized. ... -
Multiple molecular dynamics time-scales in Hybrid Monte Carlo fermion simulations
(Elsevier, 2003)A scheme for separating the high- and low-frequency molecular dynamics modes in Hybrid Monte Carlo (HMC) simulations of gauge theories with dynamical fermions is presented. The algorithm is tested in the Schwinger model ... -
Non-perturbative study of QCD on a 2 + 2 anisotropic lattice
(Elsevier, 2004)We present preliminary results for the non-perturbative determination of the parameters in a 2+2 anisotropic action. The parameters are required to restore Lorentz invariance in long-distance correlators, using the ... -
Nonperturbative study of the action parameters for anisotropic-lattice quarks
(2006)A quark action designed for highly anisotropic-lattice simulations is discussed. The mass-dependence of the parameters in the action is studied and the results are presented. Applications of this action in studies of ... -
QCD on 2 + 2 anisotropic lattices
(Elsevier, 2003)We discuss the implementation of QCD on 2 + 2 anisotropic lattices. Technical details regarding the choice of the action as well as perturbative and non-perturbative improvement are analyzed. The physical applications ...
