Aoki Phases in Staggered-Wilson Fermions
High Energy Physics - Lattice
2012-01-30 v2
Abstract
We investigate the parity-broken phase (Aoki phase) for staggered-Wilson fermions by using the Gross-Neveu model and the strong-coupling lattice QCD. In the both cases the gap equations indicate the parity-broken phase exists and the pion becomes massless on the phase boundaries. We also show we can take the chiral and continuum limit in the Gross-Neveu model by tuning mass and gauge-coupling parameters. This supports the idea that the staggered-Wilson fermions can be applied to the lattice QCD simulation by taking a chiral limit, as with Wilson fermions.
Cite
@article{arxiv.1110.1231,
title = {Aoki Phases in Staggered-Wilson Fermions},
author = {Tatsuhiro Misumi and Michael Creutz and Taro Kimura and Takashi Z. Nakano and Akira Ohnishi},
journal= {arXiv preprint arXiv:1110.1231},
year = {2012}
}
Comments
7 pages, 4 figures, presented at 29th International Symposium on Lattice Field Theory, Lattice2011, July 10-16, 2011, Squaw Valley, California, USA