Localized Electromagnetic Perturbations on Vector Solitons

TL;DR

This paper investigates how electromagnetic fields can be localized on non-topological solitons within a U(1) gauge theory coupled to a complex Proca field, analyzing vibrational modes and their properties.

Contribution

It introduces a model with gauge kinetic coupling to a complex Proca field and studies the vibrational modes on spherically symmetric solitons, providing new insights into electromagnetic localization.

Findings

Identification of vibrational modes of the Proca field

Analysis of properties of localized electromagnetic fields

Characterization of the energy scale set by the vector boson mass

Abstract

Using effective field theory approach one can describe localization of electromagnetic field on a non-topological soliton. Pursuing this aim we consider the U(1) gauge theory with gauge kinetic coupling to a self-interacting complex neutral Proca field. The model possesses single energy scale given by the vector boson mass. Considering spherically symmetric stationary configurations, we study vibrational modes of the Proca field on the background of the soliton and discuss their properties.