Vortices of SO(2) gauged Skyrmions in 2+1 dimensions

Abstract

Vortices the SO(2) gauged planar Skyrme model, with a) only Maxwell, b) only Chern-Simons, and c) both Maxwell and Chern-Simons dynamics are studied systematically. In cases a) and b), where both models feature a single parameter λ (the coupling of the potential term), the dependence of the energy on λ is analysed. It is shown that the plots of the energy vs. λ feature discontinuities and branches. In case c), the emphasis is on the evolution of the topological charge, taking non-integer values. Throughout, the properties studied are contrasted with those of the corresponding Abelian Higgs models

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