Anomaly matching for the phase diagram of massless ZN-QCD

被引：72

作者：

Tanizaki, Yuya ^{[1
]}

Kikuchi, Yuta ^{[2
,3
]}

Misumi, Tatsuhiro ^{[4
,5
,6
]}

Sakai, Norisuke ^{[5
,6
]}

机构：

[1] Brookhaven Natl Lab, BNL Res Ctr, RIKEN, Upton, NY 11973 USA

[2] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[3] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[4] Akita Univ, Dept Math Sci, Akita 0108502, Japan

[5] Keio Univ, Res & Educ Ctr Nat Sci, Kanagawa 2238521, Japan

[6] RIKEN, ITHEMS, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 05期

基金：

日本学术振兴会; 美国国家科学基金会;

关键词：

FINITE-DENSITY; GAUGE-THEORIES; LATTICE QCD;

D O I：

10.1103/PhysRevD.97.054012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We elucidate that the phase diagram of massless N-flavor QCD under a Z(N) flavor-twisted boundary condition (massless Z(N)-QCD) is constrained by a 't Hooft anomaly involving two-form gauge fields. As a consequence, massless Z(N)-QCD turns out to realize persistent order at any temperature and quark chemical potential; namely, the symmetric and gapped phase is strictly forbidden. This is the first result on the finite-(T, mu) phase diagram in QCD-type theories based on anomaly matching related to center and discrete axial symmetries.

引用

页数：7

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