Large N universality of the twodimensional YangMills string
Abstract
We exhibit the gaugegroup independence ("universality") of all normalized nonintersecting Wilson loop expectation values in the large N limit of twodimensional YangMills theory. This universality is most easily understood via the string theory reformulation of these gauge theories. By constructing an isomorphism between the string maps contributing to normalized Wilson loop expectation values in the different theories, we prove the large N universality of these observables on any surface. The string calculation of the Wilson loop expectation value on the sphere also leads to an indication of the large N phase transition separating strong and weakcoupling phases.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1995
 DOI:
 10.1016/05503213(95)00215E
 arXiv:
 arXiv:hepth/9503020
 Bibcode:
 1995NuPhB.446....3C
 Keywords:

 High Energy Physics  Theory
 EPrint:
 18 pages, phyzzx macro, no figures