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arXiv 2009.04692hep-thcond-mat.str-el
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Goldstone玻色子的一般anomaly匹配

General anomaly matching by Goldstone bosons

Kazuya Yonekura

摘要:

我们描述了自发对称破缺的Goldstone玻色子$G \to H$如何在非微扰水平上再现对称群$G$下UV理论的异常。这是通过在描述$d$维UV理论异常的$d+1$维可逆场论中给出Wess-Zumino-Witten项的一般定义来实现的。在陪集构造$G/H$中,用来描述Goldstone玻色子的隐局域对称性$\widehat H$起着重要的作用.我们的定义也自然地导致广义$θ$ -隐藏的局部规范群$\widehat H$的角度。我们用四维的${\rm SO}(N_c)$(或${\rm Spin}(N_c)$)类QCD理论来说明这一点。

英文摘要:

We describe how Goldstone bosons of spontaneous symmetry breaking $G \to H$ can reproduce anomalies of UV theories under the symmetry group $G$ at the nonperturbative level. This is done by giving a general definition of Wess-Zumino-Witten terms in terms of the invertible field theories in $d+1$ dimensions which describe the anomalies of $d$-dimensional UV theories. The hidden local symmetry $\widehat H$, which is used to describe Goldstone bosons in coset construction $G/H$, plays an important role. Our definition also naturally leads to generalized $θ$-angles of the hidden local gauge group $\widehat H$. We illustrate this point by ${\rm SO}(N_c)$ (or ${\rm Spin}(N_c)$) QCD-like theories in four dimensions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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