Schwarz-preconditioned HMC algorithm for two-flavour lattice QCD

Ali Khan; Allton; Allton; Aoki; Bali; de Forcrand; Della Morte; Duane; Eicker; Eicker; Fischer; Frommer; Giusti; Hasenbusch; Hasenbusch; Iwasaki; Lippert; Lüscher; Lüscher; Lüscher; Lüscher; Madras; Martin Lüscher; Namekawa; Orth; Peardon; Peardon; Saad; Sexton; Sheikholeslami; Sommer; van der Vorst; Wilson; Wolff

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Schwarz-preconditioned HMC algorithm for two-flavour lattice QCD

Authors: Ali Khan
Allton
Allton
Aoki
Bali
de Forcrand
Della Morte
Duane
Eicker
Eicker
Fischer
Frommer
Giusti
Hasenbusch
Hasenbusch
Iwasaki
Lippert
Lüscher
Lüscher
Lüscher
Lüscher
Madras
Martin Lüscher
Namekawa
Orth
Peardon
Peardon
Saad
Sexton
Sheikholeslami
Sommer
van der Vorst
Wilson
Wolff
Publication date: 17 September 2004
Publisher: 'Elsevier BV'
Doi

Abstract

The combination of a non-overlapping Schwarz preconditioner and the Hybrid Monte Carlo (HMC) algorithm is shown to yield an efficient simulation algorithm for two-flavour lattice QCD with Wilson quarks. Extensive tests are performed, on lattices of size up to 32x24x24x24, with lattice spacings a~0.08 fm and at bare current-quark masses as low as 21 MeV.Comment: Plain TeX file, 32 pages, 9 figures include

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