't Hooft Expansion of 1/2 BPS Wilson Loop
arXiv:hep-th/0607131 · doi:10.1088/1126-6708/2006/09/007
Abstract
We revisit the 't Hooft expansion of 1/2 BPS circular Wilson loop in N=4 SYM studied by Drukker and Gross in hep-th/0010274. We find an interesting recursion relation which relates different number of holes on the worldsheet. We also argue that we can turn on the string coupling by applying a certain integral transformation to the planar result.
21 pages; v2: minor corrections