Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel

Abstract We consider strong ’t Hooft coupling expansion in special four-dimensional 𝒩 = 2 superconformal models that are planar-equivalent to 𝒩 = 4 super Yang-Mills theory. Various observables in these models that admit localization matrix model representation can be expressed at large N in terms of...

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Main Authors: M. Beccaria, G. P. Korchemsky, A. A. Tseytlin
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2022)226
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author M. Beccaria
G. P. Korchemsky
A. A. Tseytlin
author_facet M. Beccaria
G. P. Korchemsky
A. A. Tseytlin
author_sort M. Beccaria
collection DOAJ
description Abstract We consider strong ’t Hooft coupling expansion in special four-dimensional 𝒩 = 2 superconformal models that are planar-equivalent to 𝒩 = 4 super Yang-Mills theory. Various observables in these models that admit localization matrix model representation can be expressed at large N in terms of a Fredholm determinant of a Bessel operator. The latter previously appeared in the study of level spacing distributions in matrix models and, more recently, in four-point correlation functions of infinitely heavy half-BPS operators in planar 𝒩 = 4 SYM. We use this relation and a suitably generalized Szegő-Akhiezer-Kac formula to derive the strong ’t Hooft coupling expansion of the leading corrections to free energy, half-BPS circular Wilson loop, and certain correlators of chiral primaries operators in the 𝒩 = 2 models. This substantially generalizes partial results in the literature and represents a challenge for dual string theory calculations in AdS/CFT context. We also demonstrate that the resulting strong-coupling expansions suffer from Borel singularities and require adding non-perturbative, exponentially suppressed corrections. As a byproduct of our analysis, we determine the non-perturbative correction to the above mentioned four-point correlator in planar 𝒩 = 4 SYM.
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spelling doaj.art-dc91a5069fb04397bf04f1f5c53a72672022-12-22T02:02:19ZengSpringerOpenJournal of High Energy Physics1029-84792022-09-012022916210.1007/JHEP09(2022)226Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernelM. Beccaria0G. P. Korchemsky1A. A. Tseytlin2Università del Salento, Dipartimento di Matematica e Fisica Ennio De Giorgi, and I.N.F.N. — sezione di LecceInstitut de Physique Théorique, Université Paris Saclay, CNRSBlackett Laboratory, Imperial College LondonAbstract We consider strong ’t Hooft coupling expansion in special four-dimensional 𝒩 = 2 superconformal models that are planar-equivalent to 𝒩 = 4 super Yang-Mills theory. Various observables in these models that admit localization matrix model representation can be expressed at large N in terms of a Fredholm determinant of a Bessel operator. The latter previously appeared in the study of level spacing distributions in matrix models and, more recently, in four-point correlation functions of infinitely heavy half-BPS operators in planar 𝒩 = 4 SYM. We use this relation and a suitably generalized Szegő-Akhiezer-Kac formula to derive the strong ’t Hooft coupling expansion of the leading corrections to free energy, half-BPS circular Wilson loop, and certain correlators of chiral primaries operators in the 𝒩 = 2 models. This substantially generalizes partial results in the literature and represents a challenge for dual string theory calculations in AdS/CFT context. We also demonstrate that the resulting strong-coupling expansions suffer from Borel singularities and require adding non-perturbative, exponentially suppressed corrections. As a byproduct of our analysis, we determine the non-perturbative correction to the above mentioned four-point correlator in planar 𝒩 = 4 SYM.https://doi.org/10.1007/JHEP09(2022)2261/N ExpansionAdS-CFT CorrespondenceExtended SupersymmetryMatrix Models
spellingShingle M. Beccaria
G. P. Korchemsky
A. A. Tseytlin
Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
Journal of High Energy Physics
1/N Expansion
AdS-CFT Correspondence
Extended Supersymmetry
Matrix Models
title Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
title_full Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
title_fullStr Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
title_full_unstemmed Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
title_short Strong coupling expansion in 𝒩 = 2 superconformal theories and the Bessel kernel
title_sort strong coupling expansion in 𝒩 2 superconformal theories and the bessel kernel
topic 1/N Expansion
AdS-CFT Correspondence
Extended Supersymmetry
Matrix Models
url https://doi.org/10.1007/JHEP09(2022)226
work_keys_str_mv AT mbeccaria strongcouplingexpansioninn2superconformaltheoriesandthebesselkernel
AT gpkorchemsky strongcouplingexpansioninn2superconformaltheoriesandthebesselkernel
AT aatseytlin strongcouplingexpansioninn2superconformaltheoriesandthebesselkernel