The Ginsparg-Wilson relation and overlap fermions
High Energy Physics - Lattice
2026-03-06 v2
Abstract
I review the physics of lattice fermions obeying the Ginsparg-Wilson relation. I describe their relation to domain wall fermions. I give a description of methodology for performing numerical simulations with overlap fermions. This is a chapter contributed to the on-line book ``Lattice QCD at 50 years,'' (LQCD@50), edited by Tanmoy Bhattacharya, Maarten Golterman, Rajan Gupta, Laurent Lellouch, and Steve Sharpe.
Keywords
Cite
@article{arxiv.2512.07743,
title = {The Ginsparg-Wilson relation and overlap fermions},
author = {Thomas DeGrand},
journal= {arXiv preprint arXiv:2512.07743},
year = {2026}
}
Comments
19 pages, 2 figures. LaTeX. Version reviewed by editor: derivations fixed, references added, typos corrected