We report on the first master-field simulations of QCD with 2+1 dynamical quark flavours using non-perturbatively improved stabilised Wilson fermions. Our simulations are performed at a lattice spacing of 0.094 fm with 96 and 192 points in each direction. On both lattices, the pion and kaon masses are equal to 270 and 450 MeV, respectively, and mπL thus reaches an unprecedented value of 25 on the larger lattice. This setup matches a single point on a chiral trajectory with fixed trace of the quark mass matrix and allows for comparisons to standard large-scale simulations. We present our algorithmic setup and performance measures, and report about our experience in thermalising large master-field lattices with fermions.
@article{arxiv.2111.11544,
title = {Master-field simulations of QCD},
author = {P. Fritzsch and J. Bulava and M. Cè and A. Francis and M. Lüscher and A. Rago},
journal= {arXiv preprint arXiv:2111.11544},
year = {2021}
}
Comments
9 pages, 2 figures, 2 tables, talk presented at The 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology