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arXiv 0906.4062hep-th
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从AdS/CFT出发的五圈小西

Five loop Konishi from AdS/CFT

Zoltan Bajnok, Arpad Hegedus, Romuald A. Janik, Tomasz Lukowski

摘要:

我们从可积弦西格玛模型出发,利用适用于弱耦合多磁振子态的Luscher公式计算有限尺寸效应,导出了N = 4 SYM理论中Konishi算符的微扰五圈反常维数.此外,我们推导出五圈包裹贡献的L=2的单杂质态的β变形理论,这可能是在一个直接微扰计算的范围内。的Konishi表达式表现出两个新的功能-修改的渐近Bethe Anneumatic量化和灵敏度的BES/BHL敷料阶段的系数的无限集。结果满足非平凡的自洽条件-简单的超越性结构和消除μ项极点。它可能是拟议的AdS/CFT TBA系统的试验场。

英文摘要:

We derive the perturbative five loop anomalous dimension of the Konishi operator in N = 4 SYM theory from the integrable string sigma model by evaluating finite size effects using Luscher formulas adapted to multimagnon states at weak coupling. In addition, we derive the five loop wrapping contribution for the L=2 single impurity state in the beta deformed theory, which may be within reach of a direct perturbative computation. The Konishi expression exhibits two new features - a modification of Asymptotic Bethe Ansatz quantization and sensitiveness to an infinite set of coefficients of the BES/BHL dressing phase. The result satisfies nontrivial self-consistency conditions - simple transcendentality structure and cancellation of mu-term poles. It may be a testing ground for the proposed AdS/CFT TBA systems.

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