Article ID Journal Published Year Pages File Type
10725126 Physics Letters B 2011 4 Pages PDF
Abstract
We show that SU(2)L Yangian and q-deformed SU(2)R symmetries are realized in a two-dimensional sigma model defined on a three-dimensional squashed sphere. These symmetries enable us to develop the two descriptions to describe its classical dynamics, 1) rational and 2) trigonometric descriptions. The former 1) is based on the SU(2)L symmetry and the latter 2) comes from the broken SU(2)R symmetry. Each of the Lax pairs constructed in both ways leads to the same equations of motion. The two descriptions are related to one another through a non-local map.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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