Four-dimensional factorization of the fermion determinant in lattice QCD
arXiv:2203.02247 · doi:10.1016/j.physletb.2022.137103
Abstract
In the last few years it has been proposed a one-dimensional factorization of the fermion determinant in lattice QCD with Wilson-type fermions that leads to a block-local action of the auxiliary bosonic fields. Here we propose a four-dimensional generalization of this factorization. Possible applications are more efficient parallelizations of Monte Carlo algorithms and codes, master field simulations, and multi-level integration.
17 pages, 3 figures