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arxiv: 0910.1465 · v2 · submitted 2009-10-08 · ✦ hep-lat

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Investigating the critical slowing down of QCD simulations

Stefan Schaefer , Rainer Sommer , Francesco Virotta
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classification ✦ hep-lat
keywords simulationscriticaldownslowingchargecontemporarycontinuumerror
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Simulations of QCD are known to suffer from serious critical slowing down towards the continuum limit. This is particularly prominent in the topological charge. We investigate the severeness of the problem in the range of lattice spacings used in contemporary simulations and propose a method to give more reliable error estimates.

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  1. Enhanced Sampling Techniques for Lattice Gauge Theory

    hep-lat 2026-04 unverdicted novelty 5.0

    Metadynamics bias potentials and volume-extrapolation strategies reduce integrated autocorrelation times of topological charge in lattice gauge theories.