Speeding up lattice QCD simulations with clover-improved Wilson fermions

We apply a recent proposal to speed up the hybrid Monte Carlo simulation of systems with dynamical fermions to two flavour QCD with clover-improvement. The basic idea of our proposal is to split the fermion matrix into two factors with a reduced condition number each. In the effective action, for bo...

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Hauptverfasser: Hasenbusch, Martin (VerfasserIn) , Jansen, Karl (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2 April 2003
In: Nuclear physics. B, Particle physics
Year: 2003, Jahrgang: 659, Heft: 1/2, Pages: 299-320
ISSN:1873-1562
DOI:10.1016/S0550-3213(03)00227-X
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0550-3213(03)00227-X
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S055032130300227X
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Verfasserangaben:M. Hasenbusch, K. Jansen
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Zusammenfassung:We apply a recent proposal to speed up the hybrid Monte Carlo simulation of systems with dynamical fermions to two flavour QCD with clover-improvement. The basic idea of our proposal is to split the fermion matrix into two factors with a reduced condition number each. In the effective action, for both factors a pseudo-fermion field is introduced. For our smallest quark masses we see a speed-up of more than a factor of two compared with the standard algorithm.
Beschreibung:Gesehen am 05.07.2022
Beschreibung:Online Resource
ISSN:1873-1562
DOI:10.1016/S0550-3213(03)00227-X