U (1) axial symmetry and Dirac spectra in QCD at high temperature
U (1) axial symmetry and Dirac spectra in QCD at high temperature
复制标题
U(1)轴对称性和高温QCD中的狄拉克谱
DOI:
10.1007/jhep01(2016)141
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发表时间:
2015
影响因子:
5.4
通讯作者:
N. Yamamoto
中科院分区:
文献类型:
--
作者:
T. Kanazawa;N. Yamamoto
A bstractWe derive some exact results concerning the anomalous U(1)A symmetry in the chirally symmetric phase of QCD at high temperature. We discuss the importance of topology and finite-volume effects on the U(1)A symmetry violation characterized by the difference of chiral susceptibilities. In particular, we present a reliable method to measure the anomaly strength in lattice simulations with fixed topology. We also derive new spectral sum rules and a novel Banks-Casher-type relation. Through our spectral analysis we arrive at a simple alternative proof of the Aoki-Fukaya-Taniguchi “theorem” on the effective restoration of the U(1)A symmetry at high temperature.
影响因子:
5
作者:
V. Dick;F. Karsch;E. Laermann;S. Mukherjee;S. Sharma
通讯作者:
S. Sharma