The moduli space of non-Abelian vortices in Yang-Mills-Chern-Simons-Higgs theory

Abstract

We determine the dimension of the moduli space of non-Abelian vortices in Yang-Mills-Chern-Simons-Higgs theory in 2+1 dimensions for gauge groups $G=(\mathrm{U}(1)\times G^{\prime })/{\mathbb{Z}}_{n_0}$ with $G^{\prime }$ being an arbitrary semi-simple group and $n_0$ the greatest common divisor of the Abelian charges of the $G^{\prime }$ invariants. The calculation is carried out using a Callias-type index theorem, the moduli matrix approach and a D-brane setup in Type IIB string theory. We prove that the index theorem gives the number of zeromodes or moduli of the non-Abelian vortices, extend the moduli matrix approach to the Yang-Mills-Chern-Simons-Higgs theory and finally derive the effective Lagrangian of Collie and Tong using string theory.

LaTeX: 32 pages, 2 figures; V2: comments added and typos corrected

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