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arXiv 1608.04754hep-th
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AdS/dCFT中的单圈威尔逊圈和粒子界面势

One-loop Wilson loops and the particle-interface potential in AdS/dCFT

Marius de Leeuw, Asger C. Ipsen, Charlotte Kristjansen, Matthias Wilhelm

摘要:

基于N=4的超Yang-Mills理论,计算了一类具有真空期望值的四维缺陷共形场论中威尔逊圈的量子修正.具体地,我们考虑一个无限长的直威尔逊线,得到明确的结果,在大N极限的单圈校正其期望值。这使我们能够提取理论的粒子界面势。在进一步的双标度极限中,我们将我们的结果与先前在由具有通量的D5-D3探针膜系统组成的对偶弦理论装置中的计算结果进行了比较,并且我们发现完全一致。

英文摘要:

We initiate the calculation of quantum corrections to Wilson loops in a class of four-dimensional defect conformal field theories with vacuum expectation values based on N=4 super Yang-Mills theory. Concretely, we consider an infinite straight Wilson line, obtaining explicit results for the one-loop correction to its expectation value in the large-N limit. This allows us to extract the particle-interface potential of the theory. In a further double-scaling limit, we compare our results to those of a previous calculation in the dual string-theory set-up consisting of a D5-D3 probe-brane system with flux, and we find perfect agreement.

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