Integrable double deformation of the principal chiral model

Delduc, Francois, Magro, Marc and Vicedo, Benoit (2015) Integrable double deformation of the principal chiral model. Nuclear Physics B, 891. pp. 312-321. ISSN 0550-3213
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We define a two-parameter family of integrable deformations of the principal chiral model on an arbitrary compact group. The Yang–Baxter σ-model and the principal chiral model with a Wess–Zumino term both correspond to limits in which one of the two parameters vanishes


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