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000640130 005__ 20251106210424.0
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000640130 0247_ $$2arXiv$$aarXiv:2410.02794
000640130 0247_ $$2datacite_doi$$a10.3204/PUBDB-2025-04716
000640130 037__ $$aPUBDB-2025-04716
000640130 041__ $$aEnglish
000640130 088__ $$2arXiv$$aarXiv:2410.02794
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000640130 1001_ $$0P:(DE-H253)PIP1095788$$aRisch, Andreas$$b0$$eCorresponding author$$udesy
000640130 245__ $$aGauge field smearing and controlled continuum extrapolations
000640130 260__ $$c2024
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000640130 500__ $$a10 pages, 5 figures, proceedings to talk presented at the European network for Particle physics, Lattice field theory and Extreme computing (EuroPLEx2023), 11-15 September 2023, Berlin, Germany
000640130 520__ $$aWhen designing lattice actions, gauge field smearing is often used in the definition of the lattice Dirac operator. Too much smearing can result in uncontrolled continuum extrapolations as the short distance behaviour of the theory is mutilated, which is a situation to be avoided. As a smearing prescription we focus on the gradient flow formalism as it allows to study both smearing and physical flow simultaneously. We investigate the effect of smearing and physical flow on the scaling towards the continuum limit in pure gauge theory. We focus on the example of Creutz ratios, which provide a measure of the physical forces felt by the fermions. For suitable smearing strengths we further investigate the impact of replacing the Wilson gradient flow by stout smearing.
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