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We study lattice QCD at non-vanishing chemical potential using the complexLangevin equation. We compare the results with multi-parameter reweighting bothfrom $\mu=0$ and phase quenched ensembles. We find a good agreement for latticespacings below $\approx$0.15 fm. On coarser lattices the complex Langevinapproach breaks down. Four flavors of staggered fermions are used on $N_t=4, 6$and 8 lattices. For one ensemble we also use two flavors to investigate theeffects of rooting.

Complex Langevin dynamics for dynamical QCD at nonzero chemical potential: a comparison with multi-parameter reweighting