Thin-shell wormholes associated with global cosmic strings

TL;DR

This paper constructs cylindrical thin-shell wormholes linked to global cosmic strings, analyzing their stability under symmetric perturbations and finding that their evolution depends on the perturbation's velocity direction.

Contribution

It introduces a new model of thin-shell wormholes associated with global cosmic strings and examines their stability under symmetric perturbations.

Findings

Throat stability depends on the velocity perturbation direction.

Static configurations tend to either collapse or expand.

The model provides insights into wormhole behavior in cosmic string environments.

Abstract

In this article we construct cylindrical thin-shell wormholes in the context of global cosmic strings. We study the stability of static configurations under perturbations preserving the symmetry and we find that the throat tends to collapse or expand, depending only on the direction of the velocity perturbation.