Flux-Confinement in Dilatonic Cosmic Strings

TL;DR

This paper explores solutions in dilaton-electrodynamics where magnetic flux is confined in cosmic string-like structures, with implications for early universe magnetic monopole confinement.

Contribution

It introduces new global cosmic string solutions with flux confinement and discusses their potential role in early universe monopole confinement.

Findings

Solutions exist for small dilaton mass but not above a critical value.

Presence of domain wall and monopole solutions in the model.

Proposes a mechanism for magnetic monopole confinement by dilaton cosmic strings.

Abstract

We study dilaton-electrodynamics in flat spacetime and exhibit a set of global cosmic string like solutions in which the magnetic flux is confined. These solutions continue to exist for a small enough dilaton mass but cease to do so above a critcal value depending on the magnetic flux. There also exist domain wall and Dirac monopole solutions. We discuss a mechanism whereby magnetic monopolesmight have been confined by dilaton cosmic strings during an epoch in the early universe during which the dilaton was massless.