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Browsing by Author "Kagan, D."
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Non-local charges and quantum integrability of sigma models on the symmetric spaces SO(2n)/SO(n)xSO(n) and Sp(2n)/Sp(n)xSp(n)
Evans, J.; Kagan, D.; Young, Charles A. S. (2004-09)Non-local conserved charges in two-dimensional sigma models with target spaces $SO(2n)/SO(n){\times}SO(n)$ and $Sp(2n)/Sp(n){\times}Sp(n)$ are shown to survive quantization, unspoiled by anomalies; these theories are ... -
Quantum, higher-spin, local charges in symmetric space sigma models
Young, Charles A. S.; Kagan, D.; Mackay, N.; Evans, Jonathan (2004-08-31)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 ...