We discuss the kernel spectrum, locality properties and the axial-vector renormalization constant of UV-filtered overlap fermions. We find that UV-filtered overlap fermions have a better conditioned kernel, better locality and an axial-vector renormalization constant closer to 1 than their unfiltered counterparts, even if the shift parameter ρ is simply set to 1.
Cite
@article{arxiv.hep-lat/0509111,
title = {UV-filtered overlap fermions},
author = {Stephan Dürr and Christian Hoelbling and Urs Wenger},
journal= {arXiv preprint arXiv:hep-lat/0509111},
year = {2007}
}