A novel gauge-equivariant neural-network architecture for preconditioners in lattice QCD

Fuente: arXiv
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Main Authors: Pfahler, Simon, Knüttel, Daniel, Lehner, Christoph, Wettig, Tilo
Format: Preprint
Published: 2026
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author Pfahler, Simon
Knüttel, Daniel
Lehner, Christoph
Wettig, Tilo
author_facet Pfahler, Simon
Knüttel, Daniel
Lehner, Christoph
Wettig, Tilo
contents Lattice QCD simulations are computationally expensive, with the solution of the Dirac equation being the major computational bottleneck of many calculations. We introduce a novel gauge-equivariant neural-network architecture for preconditioning the Dirac equation in the regime where critical slowing down occurs. We study the behavior of this preconditioner as a function of topological charge and lattice volume and show that it mitigates critical slowing down. We also show that this preconditioner transfers to unseen gauge configurations without any retraining, therefore enabling applications not possible with competing methods.
format Preprint
id arxiv_https___arxiv_org_abs_2602_23840
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A novel gauge-equivariant neural-network architecture for preconditioners in lattice QCD
Pfahler, Simon
Knüttel, Daniel
Lehner, Christoph
Wettig, Tilo
High Energy Physics - Lattice
Lattice QCD simulations are computationally expensive, with the solution of the Dirac equation being the major computational bottleneck of many calculations. We introduce a novel gauge-equivariant neural-network architecture for preconditioning the Dirac equation in the regime where critical slowing down occurs. We study the behavior of this preconditioner as a function of topological charge and lattice volume and show that it mitigates critical slowing down. We also show that this preconditioner transfers to unseen gauge configurations without any retraining, therefore enabling applications not possible with competing methods.
title A novel gauge-equivariant neural-network architecture for preconditioners in lattice QCD
topic High Energy Physics - Lattice
url https://arxiv.org/abs/2602.23840