Diseases with rooted staggered quarks
High Energy Physics - Lattice
2008-11-26 v1
Abstract
Calculations using staggered quarks augmented with a root of the fermion determinant to reduce doubling give a qualitatively incorrect behavior in the small quark mass region. Attempts to circumvent this problem for the continuum limit involve an unproven combination of unphysical states, a loss of unitarity, and a rather peculiar non-commutation of limits.
Cite
@article{arxiv.hep-lat/0608020,
title = {Diseases with rooted staggered quarks},
author = {Michael Creutz},
journal= {arXiv preprint arXiv:hep-lat/0608020},
year = {2008}
}
Comments
5 pages, 1 figure; poster at LATTICE '06, Tucson, Arizona, July 23-28, 2006