2008/03/31 by JLQCD Collaboration, Sinya Aoki, Hidenori Fukaya +15
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1103/physrevd.78.014508
published as Phys.Rev.D78:014508,2008 · 38 pages, 28 figures; v2: minor changes in text, references added, version published in PRD
openalex publication_date 2008/07/18 · arxiv created 2008/07/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We perform numerical simulations of lattice QCD with two flavors of dynamical overlap quarks, which have exact chiral symmetry on the lattice. While this fermion discretization is computationally demanding, we demonstrate the feasibility to simulate reasonably large and fine lattices by a careful choice of the lattice action and algorithmic improvements. Our production runs are carried out on a 163\ifmmode×\else\texttimes\fi32 lattice at a single lattice spacing around 0.12 fm. We explore the sea quark mass region down to ms/6, where ms is the physical strange quark mass, for a good control of the chiral extrapolation in future calculations of physical observables. We describe in detail our setup and algorithmic properties of the production simulations and present results for the static quark potential to fix the lattice scale and the locality of the overlap operator.