ISU - Multigrid for computing propagators

Details ISU - Multigrid for computing propagators ISU - Multigrid for computing propagators

1994-11-25

arxiv.org/abs/hep-lat/9411054v1

Nucl.Phys.Proc.Suppl. 42 (1995) 846-848

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, latex, no figures, Contribution to Lattice 94, uses espcrc2.sty and fleqn.sty as required for lattice proceedings

Scientific paper

10.1016/0920-5632(95)00399-T

The Iteratively Smoothing Unigrid algorithm (ISU), a new multigrid method for computing propagators in Lattice Gauge Theory, is explained. The main idea is to compute good (i.e.\ smooth) interpolation operators in an iterative way. This method shows {\em no critical slowing down} for the 2-dimensional Laplace equation in an SU(2) gauge field. First results for the Dirac-operator are also shown.

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