We study lattice QCD at non-vanishing chemical potential using the complex Langevin equation. We compare the results with multi-parameter reweighting both from μ=0 and phase quenched ensembles. We find a good agreement for lattice spacings below ≈0.15 fm. On coarser lattices the complex Langevin approach breaks down. Four flavors of staggered fermions are used on Nt=4,6 and 8 lattices. For one ensemble we also use two flavors to investigate the effects of rooting.
@article{arxiv.1508.05260,
title = {Complex Langevin dynamics for dynamical QCD at nonzero chemical potential: a comparison with multi-parameter reweighting},
author = {Z. Fodor and S. D. Katz and D. Sexty and C. Török},
journal= {arXiv preprint arXiv:1508.05260},
year = {2015}
}