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arXiv 0901.1772hep-thhep-lathep-ph
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解析QCD的弦论对偶

Dissecting the string theory dual of QCD

Elias Kiritsis

摘要:

本文利用QCD和弦论的输入,阐明了QCD的弦论对偶的基本特征,指出相应的弦论是0型超弦的五维版本。真空解是渐近的AdS $_5$,边界附近的几何形状是弦的。然而,YM微扰理论的结构出现在边界附近。在IR中,该理论被认为是很好的近似,考虑到强耦合效应的二阶导数截断。这就解释了先前提出的五维牛顿-牛顿引力的成功,它具有适当的潜力来描述强YM动力学的显著特征。

英文摘要:

Input from QCD and string theory is used in order to elucidate basic features of the string theory dual of QCD, It is argued that the relevant string theory is a five-dimensional version of the type-0 superstring. The vacuum solution is asymptotically AdS$_5$, and the geometry near the boundary is stringy. The structure of YM perturbation theory however emerges near the boundary. In the IR, the theory is argued to be well-approximated by a two-derivative truncation that takes into account strong coupling effects. This explains the success of previously proposed five-dimensional Eistein-dilaton gravity with an appropriate potential to describe salient features of the strong YM dynamics.

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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