Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness
Date
2020-10Author
Francis, A
Fritzsch, P
Lüscher, M
Rago, Antonio
Subject
Lattice QCD Simulation algorithm Numerical stability
Metadata
Show full item recordAbstract
In master-field simulations of lattice QCD, the expectation values of interest are obtained from a single or at most a few representative gauge-field configurations on very large lattices. If the light quarks are included, the generation of these fields using standard techniques is however challenging in view of various algorithmic instabilities and precision issues. Ways to overcome these problems are described here for the case of the O(α)-improved Wilson formulation of lattice QCD and the viability of the proposed measures is then checked in extensive simulations of the theory with flavours of quarks.
Description
Plain TeX source, 35 pages, 6 figures; v2: minor text corrections;
v3: reference added; v4: corrected 2 typos; v5: published version
Collections
Publisher
Elsevier BV
Journal
Computer Physics Communications
Volume
255
Pagination
0-0
Publisher URL
Number
107355
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