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Investigating the critical slowing down of QCD simulations
Stefan Schaefer, Rainer Sommer, Francesco Virotta
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…
Wilson fermions in the epsilon regime
Oliver Bar, Silvia Necco, Stefan Schaefer
We extend the epsilon-expansion of continuum chiral perturbation theory to nonzero lattice spacing in the framework of Wilson Chiral Perturbation Theory. We distinguish various reg…
Exploring the epsilon regime with lattice Wilson fermions
Oliver Bar, Silvia Necco, Stefan Schaefer
We study the impact of explicit chiral symmetry breaking of lattice Wilson fermions on mesonic correlators in the epsilon-regime using Wilson chiral perturbation theory. We general…