Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-11-07
J.Geom.Phys.61:85-94,2011
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, LaTeX, v2,3: added Section 4 and references
Scientific paper
10.1016/j.geomphys.2010.05.011
It is well known that the classical string on a two-sphere is more or less equivalent to the sine-Gordon model. We consider the nonabelian dual of the classical string on a two-sphere. We show that there is a projection map from the phase space of this model to the phase space of the sine-Gordon model. The corresponding Poisson structure of the sine-Gordon model is nonlocal with one integration.
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