Operator product expansion coefficients in the exact renormalization group formalism
High Energy Physics - Theory
2020-05-20 v2
Abstract
We study how to compute the operator product expansion coefficients in the exact renormalization group formalism. After discussing possible strategies, we consider some examples explicitly, within the -expansions, for the Wilson-Fisher fixed points of the real scalar theory in dimensions and the Lee-Yang model in dimensions. Finally we discuss how our formalism may be extended beyond perturbation theory.
Cite
@article{arxiv.2001.07015,
title = {Operator product expansion coefficients in the exact renormalization group formalism},
author = {C. Pagani and H. Sonoda},
journal= {arXiv preprint arXiv:2001.07015},
year = {2020}
}
Comments
38 pages, 1 figure