Strong coupling analysis of aoki phase in staggered-wilson fermions

Takashi Z. Nakano, Tatsuhiro Misumi, Taro Kimura, Akira Ohnishi

Research output: Contribution to journalConference articlepeer-review

Abstract

We study strong-coupling lattice QCD with staggered-Wilson fermions, with an emphasis on the possibility of spontaneous parity breaking. We perform effective potential analysis in the strong-coupling limit. From gap equations we find the pion condensate becomes nonzero in some range of a mass parameter, which indicates the existence of the parity-broken phase. We also find massless pions and PCAC relations around the second-order phase boundary. These results suggest that we can take the chiral limit by tuning a mass parameter in lattice QCD with staggered-Wilson fermions as with the Wilson fermion.

Original languageEnglish
Article number174
JournalProceedings of Science
VolumePart F130497
Publication statusPublished - 2012
Externally publishedYes
Event30th International Symposium on Lattice Field Theory, Lattice 2012 - Cairns, Australia
Duration: 2012 Jun 242012 Jun 29

ASJC Scopus subject areas

  • General

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