Aoki Phases in Staggered-Wilson Fermions

Details Aoki Phases in Staggered-Wilson Fermions Aoki Phases in Staggered-Wilson Fermions

2011-10-06

arxiv.org/abs/1110.1231v2

PoS Lattice2011:108,2011

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures, presented at 29th International Symposium on Lattice Field Theory, Lattice2011, July 10-16, 2011, Squaw Va

Scientific paper

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.

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