paper

PP-wave string interactions from n-point correlators of BMN operators

arXiv:hep-th/0206167 · doi:10.1088/1126-6708/2002/09/054

Abstract

BMN operators are characterized by the fact that they have infinite R-charge and finite anomalous dimension in the BMN double scaling limit. Using this fact, we show that the BMN operators close under operator product expansion and form a sector in the N=4 supersymmetric Yang-Mills theory. We then identify short-distance limits of general BMN n-point correlators, and show how they correspond to the pp-wave string interactions. We also discuss instantons in the light of the pp-wave/SYM correspondence.

14 pages, 4 figures. v3: discussions improved, comments on recent literatures included, results and conclusions unchanged, version to appear in JHEP

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