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arXiv 1104.3567hep-thmath-phmath.MP
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关于欧氏威尔逊圈和黎曼θ函数的注记

Notes on Euclidean Wilson loops and Riemann Theta functions

Riei Ishizeki, Martin Kruczenski, Sannah Ziama

摘要:

AdS/CFT对应将N=4 SYM理论中的威尔逊圈与AdS 5空间中的极小面积曲面联系起来。本文研究了欧氏AdS ~ 3空间中与极小面积曲面相关的欧氏平坦威尔逊圈的情形。使用已知的数学结果,这样的最小面积的表面,我们描述了一个无穷参数家庭的封闭威尔逊圈的解析解。给出了用黎曼θ函数表示的解,并根据三割线恒等式证明了运动方程的正确性。世界面具有圆盘的拓扑结构,重整化面积被写为世界面边界上的有限一维围道积分。一个例子进行了详细讨论与相应的表面的绘图。此外,对于每个威尔逊圈,我们明确地构建一个参数家庭的变形,保持该地区。这个参数就是所谓的光谱参数。最后,对于亏格3,我们找到了这些威尔逊圈和黎曼曲面内的闭曲线之间的映射。

英文摘要:

The AdS/CFT correspondence relates Wilson loops in N=4 SYM theory to minimal area surfaces in AdS5 space. In this paper we consider the case of Euclidean flat Wilson loops which are related to minimal area surfaces in Euclidean AdS3 space. Using known mathematical results for such minimal area surfaces we describe an infinite parameter family of analytic solutions for closed Wilson loops. The solutions are given in terms of Riemann theta functions and the validity of the equations of motion is proven based on the trisecant identity. The world-sheet has the topology of a disk and the renormalized area is written as a finite, one-dimensional contour integral over the world-sheet boundary. An example is discussed in detail with plots of the corresponding surfaces. Further, for each Wilson loops we explicitly construct a one parameter family of deformations that preserve the area. The parameter is the so called spectral parameter. Finally, for genus three we find a map between these Wilson loops and closed curves inside the Riemann surface.

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