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arxiv: 0708.1285 · v2 · submitted 2007-08-09 · ✦ hep-th

A Secret Symmetry of the AdS/CFT S-matrix

classification ✦ hep-th
keywords symmetrys-matrixyangianalgebraanalogclassicalcomplementsdiscovered
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We find a new quantum Yangian symmetry of the AdS/CFT S-matrix, which complements the original su(2|2) symmetry to gl(2|2) and does not have a Lie algebra analog. Our finding is motivated by the Yangian double structure discovered at the classical level.

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