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arXiv 1104.1344hep-phhep-thnucl-th
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$\mathcal N=4$超杨-米尔斯等离子体中重夸克势强耦合展开的次引导项

The Subleading Term of the Strong Coupling Expansion of the Heavy-Quark Potential in a $\mathcal N=4$ Super Yang-Mills Plasma

Zi-qiang Zhang, Defu Hou, Hai-cang Ren, Lei Yin

摘要:

应用AdS/CFT对应,将${\cal N}$超对称Yang-Mills理论的重夸克势展开到非零温度下大t Hooft耦合的次主导项$N_c$.强耦合对应于弦-西格玛模型的半经典展开,即威尔逊圈算子的引力对偶,其次主导项用涨落的泛函行列式表示。这些决定因素的贡献进行了数值评估。

英文摘要:

Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the ${\cal N}$ supersymmetric Yang-Mills theory at large $N_c$ is carried out to the sub-leading term in the large 't Hooft coupling at nonzero temperatures. The strong coupling corresponds to the semi-classical expansion of the string-sigma model, the gravity dual of the Wilson loop operator, with the sub-leading term expressed in terms of functional determinants of fluctuations. The contributions of these determinants are evaluated numerically.

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