Yangian symmetry in deformed WZNW models on squashed spheres

Details Yangian symmetry in deformed WZNW models on squashed spheres Yangian symmetry in deformed WZNW models on squashed spheres

2011-04-05

arxiv.org/abs/1104.0738v2

Phys.Lett.B701:475-480,2011

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 1 figure, references added

Scientific paper

10.1016/j.physletb.2011.06.007

We introduce a deformation of the Wess-Zumino-Novikov-Witten model with three-dimensional squashed sphere target space. We show how with an appropriate choice of Wess--Zumino and boundary terms it is possible to construct an infinite family of conserved charges realizing an SU(2) Yangian. Finally we discuss the running of the squashing parameter under renormalization group flow.

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