Exact vortex solutions in a CP^N Skyrme-Faddeev type model

Abstract

We consider a four dimensional field theory with target space being CP^N which constitutes a generalization of the usual Skyrme-Faddeev model defined on CP^1. We show that it possesses an integrable sector presenting an infinite number of local conservation laws, which are associated to the hidden symmetries of the zero curvature representation of the theory in loop space. We construct an infinite class of exact solutions for that integrable submodel where the fields are meromorphic functions of the combinations (x^1+i x^2) and (x^3+x^0) of the Cartesian coordinates of four dimensional Minkowski space-time. Among those solutions we have static vortices and also vortices with waves traveling along them with the speed of light. The energy per unity of length of the vortices show an interesting and intricate interaction among the vortices and waves.

21 pages, plain latex, no figures

References in corpus (4)

• Knots in the Skyrme-Faddeev model
• Reformulating SU(N) Yang-Mills theory based on change of variables
• Integrable theories and loop spaces: fundamentals, applications and new developments
• Approximate vortex solution of Faddeev model

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