Integrable double deformation of the principal chiral model

Delduc, F. (Laboratoire de Physique, ENS Lyon, CNRS UMR 5672, Université de Lyon, 46, allée d'Italie, Lyon Cedex 07, 69364, France) ; Magro, M. (Laboratoire de Physique, ENS Lyon, CNRS UMR 5672, Université de Lyon, 46, allée d'Italie, Lyon Cedex 07, 69364, France) ; Vicedo, B. (School of Physics, Astronomy and Mathematics, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, United Kingdom)

18 December 2014

Abstract: 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.


Published in: Nuclear Physics B 891 (2015) 312-321
Published by: Elsevier
DOI: 10.1016/j.nuclphysb.2014.12.018
License: CC-BY-3.0



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