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Tensionless strings and R-R flux in the symmetric orbifold

Published on:

20 December 2023

Primary Category:

High Energy Physics - Theory

Paper Authors:

Matthias R. Gaberdiel,

Rajesh Gopakumar,

Beat Nairz

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Key Details

Perturb symmetric orbifold CFT by operator dual to R-R flux in AdS3 x S3 x T4

Determine action of extended supersymmetry algebra on CFT states

Deduce exact anomalous conformal dimensions and magnon dispersion relation

Magnons interact via integrable S-matrix with bound states

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Tensionless strings and R-R flux in the symmetric orbifold

We study perturbation of the symmetric orbifold of T4 by an exactly marginal operator corresponding to R-R flux in the dual AdS3 x S3 x T4 background. We systematically determine the action of an extended supersymmetry algebra on CFT states and deduce the anomalous conformal dimensions. In large twist sectors this matches the structure found for N=4 SYM: magnons have an exact dispersion relation fixed by symmetry, suggesting the result is true to all orders. Finally multi-magnon states interact via an integrable S-matrix and possess bound states.

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