Self-dual Vortices in the Generalized Abelian Higgs Model with Independent Chern-Simons Interaction

TL;DR

This paper investigates self-dual vortex solutions in a generalized Abelian Higgs model with independent Chern-Simons interaction, exploring various special cases, their properties, and the existence of multisoliton solutions through numerical analysis.

Contribution

It introduces a generalized model unifying Maxwell-Higgs, Chern-Simons-Higgs, and $CP^1$ models, and proves the existence of multisoliton solutions in a specific phase.

Findings

Existence of multisoliton solutions in asymmetric phase

Numerical evidence against half-integer vorticity solutions

Unified framework for different vortex models

Abstract

Self-dual vortex solutions are studied in detail in the generalized abelian Higgs model with independent Chern-Simons interaction. For special choices of couplings, it reduces to a Maxwell-Higgs model with two scalar fields, a Chern-Simons-Higgs model with two scalar fields, or other new models. We investigate the properties of the static solutions and perform detailed numerical analyses. For the Chern-Simons-Higgs model with two scalar fields in an asymmetric phase, we prove the existence of multisoliton solutions which can be viewed as hybrids of Chern-Simons vortices and $CP^1$ lumps. We also discuss solutions in a symmetric phase with the help of the corresponding exact solutions in its nonrelativistic limit. The model interpolating all three models---Maxwell-Higgs, Chern-Simons-Higgs, and $CP^1$ models--- is discussed briefly. Finally we study the possibility of vortex solutions with half-integer vorticity in the special case of the model. Numerical results are negative.