paper

Matching three-point functions of BMN operators at weak and strong coupling

arXiv:1204.3096 · doi:10.1007/JHEP06(2012)142

Abstract

The agreement between string theory and field theory is demonstrated in the leading order by providing the first calculation of the correlator of three two-impurity BMN states with all non-zero momenta. The calculation is performed in two completely independent ways: in field theory by using the large- perturbative expansion, up to the terms subleading in finite-size, and in string theory by using the Dobashi-Yoneya 3-string vertex in the leading order of the Penrose expansion. The two results come out to be completely identical.

14 pages, 1 figure

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