Operators with large R-charge in N=4 Yang-Mills theory

David J. Gross, Andrei Mikhailov, Radu Roiban

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

It has been recently proposed that string theory in the background of a plane wave corresponds to a certain subsector of the N = 4 supersymmetric Yang-Mills theory. This correspondence follows as a limit of the AdS/CFT duality. As a particular case of the AdS/CFT correspondence, it is a priori a strong-weak coupling duality. However, the predictions for the anomalous dimensions which follow from this particular limit are analytic functions of the 't Hooft coupling constant λ and have a well-defined expansion in the weak coupling regime. This allows one to conjecture that the correspondence between the strings on the plane wave background and the Yang-Mills theory works at the level of perturbative expansions. In our paper we perform perturbative computations in the Yang-Mills theory that confirm this conjecture. We calculate the anomalous dimension of the operator corresponding to the elementary string excitation. We verify at the two-loop level that the anomalous dimension has a finite limit when the R-charge J → ∞ keeps λ / J2 finite. We conjecture that this is true at higher orders of perturbation theory. We show, by summing an infinite subset of Feynman diagrams, under the above assumption, that the anomalous dimensions arising from the Yang-Mills perturbation theory are in agreement with the anomalous dimensions following from the string worldsheet sigma-model.

Original languageEnglish (US)
Pages (from-to)31-52
Number of pages22
JournalAnnals of Physics
Volume301
Issue number1
DOIs
StatePublished - Oct 10 2002

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Yang-Mills theory
operators
strings
plane waves
perturbation theory
analytic functions
expansion
Feynman diagrams
string theory
set theory
predictions
excitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Gross, David J. ; Mikhailov, Andrei ; Roiban, Radu. / Operators with large R-charge in N=4 Yang-Mills theory. In: Annals of Physics. 2002 ; Vol. 301, No. 1. pp. 31-52.
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Operators with large R-charge in N=4 Yang-Mills theory. / Gross, David J.; Mikhailov, Andrei; Roiban, Radu.

In: Annals of Physics, Vol. 301, No. 1, 10.10.2002, p. 31-52.

Research output: Contribution to journalArticle

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