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Topology changing update algorithms for SU(3) gauge theory (2210.11453v2)
Published 20 Oct 2022 in hep-lat
Abstract: At fine lattice spacings, lattice simulations are plagued by slow (topological) modes that give rise to large autocorrelation times. These, in turn, lead to statistical and systematic errors that are difficult to estimate. We study the problem and possible algorithmic solutions in 4-dimensional SU(3) gauge theory, with special focus on instanton updates and Metadynamics.
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