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arXiv 1807.06558hep-lathep-phhep-th
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迹变形$SU(3)$ Yang-Mills理论中$θ$依赖性的格点研究

$θ$ dependence in trace deformed $SU(3)$ Yang-Mills theory: a lattice study

Claudio Bonati, Marco Cardinali, Massimo D'Elia

摘要:

本文通过数值格子模拟研究了定义在$S_1\times\mathbb{R}^3$上的迹变形$SU(3)$ Yang-Mills理论的拓扑性质。更准确地说,我们评估的拓扑易感性和$b_2$系数(有关的拓扑电荷分布的第四累积量)的这个理论的不同值的晶格间距和紧致半径。在所有的情况下,我们发现结果与相应的标准$SU(3)$杨米尔斯理论$\mathbb{R}^4$。

英文摘要:

In this paper we investigate, by means of numerical lattice simulations, the topological properties of the trace deformed $SU(3)$ Yang-Mills theory defined on $S_1\times\mathbb{R}^3$. More precisely, we evaluate the topological susceptibility and the $b_2$ coefficient (related to the fourth cumulant of the topological charge distribution) of this theory for different values of the lattice spacing and of the compactification radius. In all the cases we find results in good agreement with the corresponding ones of the standard $SU(3)$ Yang-Mills theory on $\mathbb{R}^4$.

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