The topological non-Abelian string in the extended $\mathrm{SU}(N)\otimes \mathrm{U}(1)$ gauge sector

Zhengyang Bian, Ning Chen, Mian Guo +2

We study the topological non-Abelian string and its classical stability in models with two Higgs fields to achieve the symmetry breaking of ${\rm SU}(N) \otimes {\rm U}(1)_X\to {\r…