Genus-One String Amplitudes from Conformal Field Theory

Alday, Luis F.Mathematical Institute, University of Oxford, Oxford, U.K. (author)

We explore and exploit the relation between non-planar correlators in N=4 super-Yang-Mills, and higher-genus closed string amplitudes in type IIB string theory. By conformal field theory techniques we construct the genus-one, four-point string amplitude in AdS5×S5 in the low-energy expansion, dual to an N=4 super-Yang-Mills correlator in the 't Hooft limit at order 1/c2 in a strong coupling expansion. In the flat space limit, this maps onto the genus-one, four-point scattering amplitude for type II closed strings in ten dimensions. Using this approach we reproduce several results obtained via string perturbation theory. We also demonstrate a novel mechanism to fix subleading terms in the flat space limit of AdS amplitudes by using string/M-theory.

Bissi, AgneseUppsala universitet,Teoretisk fysik(Swepub:uu)agnbi622 (author)
Perlmutter, EricWalter Burke Institute for Theoretical Physics, Caltech, Pasadena, U.S.A. (author)
Mathematical Institute, University of Oxford, Oxford, U.K.Teoretisk fysik (creator_code:org_t)

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Subatomic Physic ...

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