Algebra of Non-Local Charges in Supersymmetric Non-Linear Sigma Models
L. E. Saltini, A. Zadra
Abstract
We propose a graphic method to derive the classical algebra (Dirac brackets) of non-local conserved charges in the two dimensional supersymmetric non-linear O(N) sigma model. As in the purely bosonic theory we find a cubic Yangian algebra. We also consider the extension of graphic methods to other integrable theories.
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