On the semiclassical 3-point function in AdS_3

Details On the semiclassical 3-point function in AdS_3 On the semiclassical 3-point function in AdS_3

2012-04-05

arxiv.org/abs/1204.1322v1

Physics

High Energy Physics

High Energy Physics - Theory

15 page, harvmac TeX

Scientific paper

We reconsider the problem of determining the semiclassical 3-point function in the Euclidean AdS_3 model. Exploiting the affine symmetry of the model we use solutions of the classical Knizhnik-Zamolodchikov (KZ) equation to compute the saddle point of the action in the presence of three vertex operators. This alternative derivation reproduces the "heavy charge" classical limit of the quantum 3-point correlator. It is different from the recently proposed expression obtained by generalised Pohlmeyer reduction in AdS_2

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