In this paper we investigate the algebraic structure of AdS/CFT in the strong-coupling limit. We propose an expression for the classical r-matrix with (deformed) u(2|2) symmetry, which leads to a quasi-triangular Lie bialgebra as the underlying symmetry algebra. On the fundamental representation our r-matrix coincides with the classical limit of the quantum R-matrix.
CITATION STYLE
Beisert, N., & Spill, F. (2009). The classical r-matrix of AdS/CFT and its Lie bialgebra structure. Communications in Mathematical Physics, 285(2), 537–565. https://doi.org/10.1007/s00220-008-0578-2
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