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.
Giusti, L., Saccardi, M. (2022). Four-dimensional factorization of the fermion determinant in lattice QCD. PHYSICS LETTERS. SECTION B, 829(10 June 2022) [10.1016/j.physletb.2022.137103].
Four-dimensional factorization of the fermion determinant in lattice QCD
Giusti, L
;Saccardi, M
2022
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.
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