Large N correlation functions in superconformal field theories

被引:0
作者
Diego Rodriguez-Gomez
Jorge G. Russo
机构
[1] Universidad de Oviedo,Department of Physics
[2] Institució Catalana de Recerca i Estudis Avançats (ICREA),Departament de Fısica Cuántica i Astrofísica and Institut de Ciències del Cosmos
[3] Universitat de Barcelona,undefined
来源
Journal of High Energy Physics | / 2016卷
关键词
1/N Expansion; Supersymmetric gauge theory;
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摘要
We compute correlation functions of chiral primary operators in N=2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathcal{N}=2 $$\end{document} super-conformal theories at large N using a construction based on supersymmetric localization recently developed by Gerchkovitz et al. We focus on N=4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathcal{N}=4 $$\end{document} SYM as well as on supercon-formal QCD. In the case of N=4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathcal{N}=4 $$\end{document} we recover the free field theory results as expected due to non-renormalization theorems. In the case of superconformal QCD we study the planar expansion in the large N limit. The final correlators admit a simple generalization to a finite N formula which exactly matches the various small N results in the literature.
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