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首页> 外文期刊>Physical review, D >Distribution of energy-momentum tensor around a static quark in the deconfined phase of SU(3) Yang-Mills theory
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Distribution of energy-momentum tensor around a static quark in the deconfined phase of SU(3) Yang-Mills theory

机译:苏(3)阳厂理论的解构阶段静态夸克周围的能量动量张量分布

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The energy-momentum tensor (EMT) characterizes the response of the vacuum as well as the thermal medium under the color electromagnetic fields. We define the EMT by means of the gradient-flow formalism and study its spatial distribution around a static quark in the deconfined phase of SU(3) Yang-Mills theory on the lattice. Although no significant difference can be seen between the EMT distributions in the radial and transverse directions except for the sign, the temporal component is substantially different from the spatial ones near the critical temperature T c . This is in contrast to the prediction of the leading-order thermal perturbation theory. The lattice data of the EMT distribution also indicate the thermal screening at long distance and the perturbative behavior at short distance.
机译:能量动量张量(EMT)表征真空和彩色电磁场下的热介质的响应。 我们通过梯度 - 流动形式主义来定义EMT,并研究其围绕歌词解码阶段的静态夸克周围的空间分布。 尽管除了标志之外,在径向和横向方向上的EMT分布之间没有显着差异,但是时间部件与临界温度T C附近的空间分量基本不同。 这与前导阶热扰动理论的预测相反。 EMT分布的晶格数据还指示长距离的热筛选和短距离的扰动行为。

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