TY - JOUR
T1 - Complex Langevin dynamics for dynamical QCD at nonzero chemical potential
T2 - A comparison with multiparameter reweighting
AU - Fodor, Z.
AU - Katz, S. D.
AU - Sexty, D.
AU - Török, C.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - We study lattice QCD at nonvanishing chemical potential using the complex Langevin equation. We compare the results with multiparameter 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.
AB - We study lattice QCD at nonvanishing chemical potential using the complex Langevin equation. We compare the results with multiparameter 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.
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U2 - 10.1103/PhysRevD.92.094516
DO - 10.1103/PhysRevD.92.094516
M3 - Article
AN - SCOPUS:84948771267
SN - 1550-7998
VL - 92
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
M1 - 094516
ER -