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Quantum, higher-spin, local charges in symmetric space sigma models | | J.M. Evans
; D. Kagan
; N.J. MacKay
; C.A.S. Young
; | | Date: |
31 Aug 2004 | | Journal: | JHEP 0501 (2005) 020 | | Subject: | hep-th | | Abstract: | Potential anomalies are analysed for the local spin-3 and spin-4 classically conserved currents in any two-dimensional sigma model on a compact symmetric space $G/H$, with $G$ and $H$ classical groups. Quantum local conserved charges are shown to exist in exactly those models which also possess quantum non-local (Yangian) charges. The possibility of larger sets of quantum local charges is discussed and shown to be consistent with known S-matrix results and the behaviour of the corresponding Yangian representations. | | Source: | arXiv, hep-th/0408244 | | Services: | Forum | Review | PDF | Favorites | |
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