MS Seminar (Mathematics - String Theory)

Speaker: Kentaroh Yoshida (Univ. of Kyoto)
Title: Yangian symmetry in deformed WZNW models on squashed spheres
Date: Tue, May 24, 2011, 13:15 - 14:45
Place: Seminar Room A
Related File: 454.pdf
Abstract: We introduce a deformation of the Wess-Zumino-Novikov-Witten (WZNW) 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 a SU(2) Yangian algebra. Finally we discuss the running of the squashing parameter under renormalization group flow.