Speeding up finite step-size updating of full QCD on the lattice
- 3 February 1999
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 59 (5)
- https://doi.org/10.1103/physrevd.59.054505
Abstract
We propose various improvements of finite step-size updating for full QCD on the lattice that might turn finite step-size updating into a viable alternative to the hybrid Monte Carlo algorithm. These improvements are noise reduction of the noisy estimator of the fermion determinant, unbiased inclusion of the hopping parameter expansion and a multi-level Metropolis scheme. First numerical tests are performed for the 2 dimensional Schwinger model with two flavours of Wilson fermions and for QCD two flavours of Wilson fermions and Schr"odinger functional boundary conditions.Comment: 22 pages, 1 figurKeywords
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This publication has 33 references indexed in Scilit:
- Light and strange hadron spectroscopy with dynamical Wilson fermionsPhysical Review D, 1998
- Scanning the topological sectors of the QCD vacuum with the hybrid Monte Carlo algorithmPhysical Review D, 1998
- Critical dynamics of the hybrid Monte Carlo algorithmNuclear Physics B - Proceedings Supplements, 1998
- A first taste of dynamical fermions with an O(a) improved actionNuclear Physics B - Proceedings Supplements, 1998
- The QCD hadron spectrum and the number of dynamical quark flavorsNuclear Physics B - Proceedings Supplements, 1998
- Hadron spectroscopy and static quark potential in full QCD: A comparison of improved actions on the CP-PACSNuclear Physics B - Proceedings Supplements, 1998
- Implementing the generalised hybrid Monte-Carlo algorithmNuclear Physics B - Proceedings Supplements, 1998
- Hybrid Monte Carlo and topological modes of full QCDPhysics Letters B, 1996
- A new approach to the problem of dynamical quarks in numerical simulations of lattice QCDNuclear Physics B, 1994
- Hybrid Monte CarloPhysics Letters B, 1987