Wilson loops at strong coupling for curved contours with cusps

被引：9
作者：
Dorn, Harald [1 ,2 ]
机构：
[1] Humboldt Univ, Inst Phys, Zum Grossen Windkanal 6, D-12489 Berlin, Germany
[2] Humboldt Univ, IRIS Adlershof, Zum Grossen Windkanal 6, D-12489 Berlin, Germany
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2016年 / 49卷 / 14期
关键词：
Wilson loops; AdS/CFT; minimal surfaces; cusp anomalous dimension; PHASE-FACTORS; GAUGE-FIELDS; RENORMALIZATION; STRINGS;
D O I：
10.1088/1751-8113/49/14/145402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We construct the minimal surface in AdS, relevant for the strong coupling behaviour of local supersymmetric Wilson loops in N = 4 SYM for a closed contour formed out of segments of two intersecting circles. Its regularised area is calculated including all divergent parts and the finite renormalised term. Furthermore we prove that for generic planar curved contours with cusps the cusp anomalous dimensions are functions of the respective cusp angles alone. They do not depend on other local data of the cusps.
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页数：22
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