论文标题

$ \ mathbb {z} _n $ su中的deconfinement真空结构($ n $)yang-mills理论:nambu-goldstone模式的出现在很大程度上 - $ n $限制

$\mathbb{Z}_N$ structure of deconfinement vacuum in SU($N$) Yang-Mills theory: emergence of Nambu-Goldstone mode in large-$N$ limit

论文作者

Nakajima, Yuto, Suganuma, Hideo

论文摘要

使用Polyakov-loop有效动作,我们研究了SU($ n $)Yang-Mills Theory的自发损坏的$ \ mathbb {z} _n $对称的结构,该结构具有有限的$ n $。首先,我们检查了$ \ mathbb {z} _n $ - 折叠真空周围的polyakov-loop波动,并计算其相变的空间相关性。我们表明,Polyakov Loop的相变量在很大程度上成为NAMBU-GOLDSTONE模式。其次,我们估计了夸克 - 杜松等离子体的有限体积域中的全球真空到效率转变率。根据我们的估计,我们声明存在一些阈值量,一个比稳定的域更大,反之亦然。将阈值识别为稳定中心域体积的下限,我们找到了中心域的典型体积量表。

Using the Polyakov-loop effective action, we investigate the structure of spontaneously broken $\mathbb{Z}_N$ symmetry in the deconfinement vacuum in the SU($N$) Yang-Mills theory with finite $N$. First, we examine the Polyakov-loop fluctuation around a $\mathbb{Z}_N$-broken vacuum and calculate the spatial correlation of its phase variable. We show that the phase variable of the Polyakov loop becomes a Nambu-Goldstone mode in the large-$N$ limit. Second, we estimate the global vacuum-to-vacuum transition rate in a finite-volume domain of the quark-gluon plasma. Based on our estimation, we state that some threshold volume exists, a domain larger than which is stable, and vice versa. Identifying the threshold as the lower bound of a stable center domain volume, we find the typical volume scale of center domains.

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