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arXiv 0803.2475hep-thhep-ph
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N = 4超杨-米尔斯理论中从弱到强耦合的胶子散射

Gluon scattering in N=4 super-Yang-Mills theory from weak to strong coupling

Lance J. Dixon

摘要:

本文描述了在大N_c极限下N = 4超杨-米尔斯理论中胶子散射振幅的一些最新进展。这些振幅可以在弱耦合展开中计算到高阶,现在也可以在强耦合下使用AdS/CFT对应。他们持有的承诺,可解决的所有订单的规范耦合,与技术的帮助下,可积性。它们与由类光段组成的多边形威尔逊圈的期望值密切相关。

英文摘要:

I describe some recent developments in the understanding of gluon scattering amplitudes in N=4 super-Yang-Mills theory in the large-N_c limit. These amplitudes can be computed to high orders in the weak coupling expansion, and also now at strong coupling using the AdS/CFT correspondence. They hold the promise of being solvable to all orders in the gauge coupling, with the help of techniques based on integrability. They are intimately related to expectation values for polygonal Wilson loops composed of light-like segments.

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