Konishi operator at intermediate coupling
High Energy Physics - Theory
2011-01-20 v2
Abstract
TBA equations for two-particle states from the sl(2) sector proposed by Arutyunov, Suzuki and the author are solved numerically for the Konishi operator descendent up to 't Hooft's coupling lambda ~ 2046. The data obtained is used to analyze the properties of Y-functions and address the issue of the existence of the critical values of the coupling. In addition we find a new integral representation for the BES dressing phase which substantially reduces the computational time.
Cite
@article{arxiv.1006.5032,
title = {Konishi operator at intermediate coupling},
author = {Sergey Frolov},
journal= {arXiv preprint arXiv:1006.5032},
year = {2011}
}
Comments
lots of figures, v2: improved numerics, c1=2, c2=0, c4 does not vanish