Speeding up finite step-size updating of full QCD on the lattice
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 inclusi...
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| Autore principale: | |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
3 February 1999
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 1999, Volume: 59, Fascicolo: 5, Pages: 1-11 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.59.054505 |
| Accesso online: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.59.054505 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.59.054505 
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| Note sull'autore: | M. Hasenbusch |
| Riassunto: | 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 flavors of Wilson fermions and for QCD with two flavors of Wilson fermions and Schrödinger functional boundary conditions. |
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| Descrizione del documento: | Gesehen am 09.09.2022 |
| Descrizione fisica: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.59.054505 |