An Exact Prediction of N=4 SUSYM Theory for String Theory
Abstract
We propose that the expectation value of a circular BPS-Wilson loop in N=4 SUSYM can be calculated exactly, to all orders in a 1/N expansion and to all orders in g^2 N. Using the AdS/CFT duality, this result yields a prediction of the value of the string amplitude with a circular boundary to all orders in alpha' and to all orders in g_s. We then compare this result with string theory. We find that the gauge theory calculation, for large g^2 N and to all orders in the 1/N^2 expansion does agree with the leading string theory calculation, to all orders in g_s and to lowest order in alpha'. We also find a relation between the expectation value of any closed smooth Wilson loop and the loop related to it by an inversion that takes a point along the loop to infinity, and compare this result, again successfully, with string theory.
Keywords
Cite
@article{arxiv.hep-th/0010274,
title = {An Exact Prediction of N=4 SUSYM Theory for String Theory},
author = {Nadav Drukker and David J. Gross},
journal= {arXiv preprint arXiv:hep-th/0010274},
year = {2009}
}
Comments
LaTeX, 22 pages, 3 figures. Argument corrected and two new sections added