Phase structure for lattice fermions with flavored chemical potential terms

Tatsuhiro Misumi

研究成果: Article

8 被引用数 (Scopus)

抄録

We discuss the chiral phase diagram in the parameter space of lattice QCD with minimal-doubling fermions, which can be seen as lattice fermions with flavored chemical potential terms. We study strong-coupling lattice QCD with the Karsten-Wilczek formulation, which has one relevant parameter μ 3 as well as gauge coupling and a mass parameter. We find a nontrivial chiral phase structure with a second-order phase transition between chiral symmetric and broken phases. To capture the whole structure of the phase diagram, we study the related lattice Gross-Neveu model. The result indicates that the chiral phase transition also exists in the weak-coupling region. From these results we speculate on the μ 3-g2 chiral phase diagram in lattice QCD with minimal-doubling fermions, and discuss their application to numerical simulations.

本文言語English
論文番号68
ジャーナルJournal of High Energy Physics
2012
8
DOI
出版ステータスPublished - 2012 1 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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