QCD phase diagram with 2-flavor lattice fermion formulations

Taro Kimura, Tatsuhiro Misumi, Akira Ohnishi

Research output: Contribution to journalConference articlepeer-review

Abstract

We propose a new framework for investigating two-flavor lattice QCD with finite temperature and density by applying the Karsten-Wilczek lattice fermion, in which a species-dependent imaginary chemical potential can reduce the number of species to two without losing chiral symmetry. This lattice discretization is useful for study on finite-(T;m) QCD since its discrete symmetries are appropriate for the case. To show its applicability, we study strong-coupling lattice QCD with temperature and chemical potential. We derive the effective potential of the scalar meson field and obtain a critical line of the chiral phase transition, which is qualitatively consistent with the phenomenologically expected phase diagram.

Original languageEnglish
Article number070
JournalProceedings of Science
VolumePart F130497
DOIs
Publication statusPublished - 2012
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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