Strong-coupling Analysis of Parity Phase Structure in Staggered-Wilson Fermions
arXiv:1205.6545 · doi:10.1103/PhysRevD.86.034501
Abstract
We study strong-coupling lattice QCD with staggered-Wilson fermions, with emphasis on discrete symmetries and possibility of their spontaneous breaking. We perform hopping parameter expansion and effective potential analyses in the strong-coupling limit. From gap equations we find nonzero pion condensate in some range of a mass parameter, which indicates existence of the parity-broken phase in lattice QCD with staggered-Wilson fermions. We also find massless pions and PCAC relations around second-order phase boundary. These results suggest that we can take a chiral limit by tuning a mass parameter in lattice QCD with staggered-Wilson fermions as with the Wilson fermion.
37 pages, 9 figures
References in corpus (14)
- A Method for Simulating Chiral Fermions on the Lattice
- More about exactly massless quarks on the lattice
- Axial symmetries in lattice QCD with Kaplan fermions
- Highly Improved Staggered Quarks on the Lattice, with Applications to Charm Physics
- Spontaneous Flavor and Parity Breaking with Wilson Fermions
- Theoretical foundation for the Index Theorem on the lattice with staggered fermions
- Single flavor staggered fermions
- Index Theorem and Overlap Formalism with Naive and Minimally Doubled Fermions
- Aoki Phases in the Lattice Gross-Neveu Model with Flavored Mass terms
- Pairs of chiral quarks on the lattice from staggered fermions
- On the consistency of the Aoki-phase
- Revisiting symmetries of lattice fermions via spin-flavor representation
- Numerical properties of staggered quarks with a taste-dependent mass term
- QCD with two flavors of Wilson fermions: The QCD vacuum, the Aoki vacuum and other vacua
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- New conjecture on exact Dirac zero-modes of lattice fermions
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- Minimal-doubling and single-Weyl Hamiltonians