Spontaneous symmetry breaking and Nambu-Goldstone modes in QCD matter

被引:0
|
作者
Hidaka, Yoshimasa [1 ]
机构
[1] RIKEN Nishina Ctr, Theoret Res Devis, Tsukuba, Ibaraki, Japan
关键词
spontaneous symmetry breaking; finite temperature; QCD; PHENOMENOLOGICAL LAGRANGIANS; GAUGE-THEORIES; SUPERCONDUCTIVITY;
D O I
10.1063/1.4938600
中图分类号
O59 [应用物理学];
学科分类号
摘要
We discuss spontaneous symmetry breaking and the Nambu-Goldstone (NG) modes at finite temperature and density. We focus on internal symmetry breaking for general systems including QCD at finite temperature and density. We show that there are two types of NG modes: type-A and type-B NG modes. The difference of these modes can be understood as the different motions: harmonic oscillation and precession motion. We also discuss the counting rule of NG modes and their dispersion relations.
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页数:10
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