Analytic smearing of SU(3) link variables in lattice QCD

Colin Morningstar and Mike Peardon
Phys. Rev. D 69, 054501 – Published 23 March 2004
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Abstract

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 based on molecular dynamics evolution for gauge-field actions constructed using such smeared links. In examining the smeared mean plaquette and the static quark-antiquark potential, no degradation in effectiveness is observed as compared to link smearing methods currently in use, although an increased sensitivity to the smearing parameter is found.

  • Received 11 November 2003

DOI:https://doi.org/10.1103/PhysRevD.69.054501

©2004 American Physical Society

Authors & Affiliations

Colin Morningstar

  • Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA

Mike Peardon

  • School of Mathematics, Trinity College, Dublin 2, Ireland

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Issue

Vol. 69, Iss. 5 — 1 March 2004

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