openQ*D code: a versatile tool for QCD+QED simulations

Abstract

We present the open-source package openQ*D-1.0, which has been primarily, but not uniquely, designed to perform lattice simulations of QCD+QED and QCD, with and without C* boundary conditions, and O(a) improved Wilson fermions. The use of C* boundary conditions in the spatial direction allows for a local and gauge-invariant formulation of QCD+QED in finite volume, and provides a theoretically clean setup to calculate isospin-breaking and radiative corrections to hadronic observables from first principles. The openQ*D code is based on openQCD-1.6 and NSPT-1.4. In particular it inherits from openQCD-1.6 several core features, e.g. the highly optimized Dirac operator, the locally deflated solver, the frequency splitting for the RHMC, or the 4th order OMF integrator.

arXiv commentRC* collaboration, 41 pages, 8 figures, 1 table, source code reference: https://dx.doi.org/10.20350/digitalCSIC/8591

References in corpus (36)

• Properties and uses of the Wilson flow in lattice QCD
• Chiral symmetry and O(a) improvement in lattice QCD
• The Schrödinger Functional - a Renormalizable Probe for Non-Abelian Gauge Theories
• Ab initio calculation of the neutron-proton mass difference
• Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
• Kaon Decays in the Standard Model
• Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
• A Portable High-Quality Random Number Generator for Lattice Field Theory Simulations
• On the Schroedinger functional in QCD
• Lattice QCD with open boundary conditions and twisted-mass reweighting
• Vector Correlators in Lattice QCD: methods and applications
• The strange quark mass and Lambda parameter of two flavor QCD
• O(a) improvement of lattice QCD with two flavors of Wilson quarks
• Chiral symmetry and the Yang--Mills gradient flow
• Setting the scale for the CLS $2+1$ flavor ensembles
• Leading isospin breaking effects on the lattice
• First lattice calculation of the QED corrections to leptonic decay rates
• Light-meson leptonic decay rates in lattice QCD+QED
• Local coherence and deflation of the low quark modes in lattice QCD
• A New Exact Method for Dynamical Fermion Computations with Non-Local Actions
• Improvement of N_f=3 lattice QCD with Wilson fermions and tree-level improved gauge action
• Deflation acceleration of lattice QCD simulations
• Charged hadrons in local finite-volume QED+QCD with C* boundary conditions
• Supersymmetric Yang-Mills theory on the lattice
• Using infinite volume, continuum QED and lattice QCD for the hadronic light-by-light contribution to the muon anomalous magnetic moment
• Isospin splittings of meson and baryon masses from three-flavor lattice QCD + QED
• QED self energies from lattice QCD without power-law finite-volume errors
• Step scaling and the Yang-Mills gradient flow
• Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness
• Soft-Photon Corrections to $\bar{B}\to D{\tau }^{-}{\bar{\nu }}_{\tau }$ Relative to $\bar{B}\to D{\mu }^{-}{\bar{\nu }}_{\mu }$
• The light bound states of $\mathcal{N}=1$ supersymmetric SU(3) Yang-Mills theory on the lattice
• SMD-based numerical stochastic perturbation theory
• Gauge invariant determination of charged hadron masses
• SU(N) Gauge Theories with C-Periodic Boundary Conditions: II. Small Volume Dynamics
• Simulations of QCD and QED with C* boundary conditions
• openQ*D simulation code for QCD+QED