Scaling tests with dynamical overlap and rooted staggered fermions
High Energy Physics - Lattice
2008-11-26 v2
Abstract
We present a scaling analysis in the 1-flavor Schwinger model with the full overlap and the rooted staggered determinant. In the latter case the chiral and continuum limit of the scalar condensate do not commute, while for overlap fermions they do. For the topological susceptibility a universal continuum limit is suggested, as is for the partition function and the Leutwyler-Smilga sum rule. In the heavy-quark force no difference is visible even at finite coupling. Finally, a direct comparison between the complete overlap and the rooted staggered determinant yields evidence that their ratio is constant up to effects.
Keywords
Cite
@article{arxiv.hep-lat/0411022,
title = {Scaling tests with dynamical overlap and rooted staggered fermions},
author = {Stephan Dürr and Christian Hoelbling},
journal= {arXiv preprint arXiv:hep-lat/0411022},
year = {2008}
}
Comments
28 pages, 20 figures containg 37 graphs. v2: 6 new references, 2 new footnotes (to match published version)