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arXiv · 1110.1231

Aoki Phases in Staggered-Wilson Fermions

Tatsuhiro Misumi·Michael Creutz·Taro Kimura·Takashi Z. Nakano·Akira Ohnishi
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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.

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Tatsuhiro Misumi, Michael Creutz, Taro Kimura, Takashi Z. Nakano, Akira Ohnishi. 2012-01-27. Aoki Phases in Staggered-Wilson Fermions. https://arxiv.org/abs/1110.1231

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