We compute string amplitudes on pp-waves supported by NS-NS 3-form fluxes and arising in the Penrose limit of AdS(3) X S-3 X M. We clarify the role of the non-chiral accidental SU(2) symmetry of the background. We comment on the extension of our results to the superstring and propose a holographic formula in the BMN limit of the AdS(3)/CFT2 correspondence valid for any correlator.
String amplitudes in the Hpp wave limit of AdS3 x S3
D'APPOLLONIO, GIUSEPPE;
2004-01-01
Abstract
We compute string amplitudes on pp-waves supported by NS-NS 3-form fluxes and arising in the Penrose limit of AdS(3) X S-3 X M. We clarify the role of the non-chiral accidental SU(2) symmetry of the background. We comment on the extension of our results to the superstring and propose a holographic formula in the BMN limit of the AdS(3)/CFT2 correspondence valid for any correlator.
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