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.
Articolo in rivista - Articolo scientifico
Scientifica
Lattice QCD; Domain Decomposition; Factorization; Fermion determinant; Multi-level; Master-field; HPC;
English
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].
Giusti, L; Saccardi, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/388132
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