Anomaly matching for phase diagram of massless ZN-QCD
Anomaly matching for phase diagram of massless ZN-QCD
复制标题
无质量ZN-QCD相图的反常匹配
DOI：
10.1103/physrevd.97.054012
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发表时间：
2018
影响因子：
5
通讯作者：
Norisuke Sakai
中科院分区：
文献类型：
--
作者：
Yuya Tanizaki;Yuta Kikuchi;Tatsuhiro Misumi;Norisuke Sakai
我们阐明了无质量味QCD在无旋扭边界条件下的相图受到包含两种形式规范场的t Hooft反常的约束。因此，无质量QCD在任何温度和夸克化学势下都能实现持续有序，即严格禁止对称和带隙的相位。这是基于中心对称和离散轴对称反常匹配的QCD型理论中有限相图的第一个结果。
We elucidate that the phase diagram of massless-flavor QCD under aflavor-twisted boundary condition (massless-QCD) is constrained by a ’t Hooft anomaly involving two-form gauge fields. As a consequence, massless-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-phase diagram in QCD-type theories based on anomaly matching related to center and discrete axial symmetries.