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arXiv 1301.3449hep-phhep-lat
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弱耦合和强耦合Yang-Mills理论中的体谱函数和剪切谱函数

Bulk and shear spectral functions in weakly and strongly coupled Yang-Mills theory

Aleksi Vuorinen, Martin Krssak, Yan Zhu

摘要:

在这次演讲中,我们讨论了一些最近的计算,旨在确定对应于高温SU(N)杨-米尔斯理论中能量动量张量的各个分量的谱函数。审查的计算包括弱耦合和规范/重力技术的应用,从而使一个访问不同的限制的数量。这项工作的动机是双重的:一方面,希望这些结果有助于从晶格数据中最终非微扰地提取体粘和剪切粘,而另一方面,它们也使晶格,微扰和全息预测对某些欧几里得几何的直接比较成为可能。

英文摘要:

In this talk, we discuss a number of recent calculations aimed at determining the spectral functions corresponding to various components of the energy momentum tensor in high-temperature SU(N) Yang-Mills theory. The computations reviewed include applications of both weak coupling and gauge/gravity techniques, and thus enable one to access different limits of the quantities. The motivation for the work is twofold: On one hand, the results are hoped to aid the eventual nonperturbative extraction of the bulk and shear viscosities from lattice data, while on the other hand they also enable an immediate comparison of the lattice, perturbative and holographic predictions for certain Euclidean correlators.

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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