Stability of spherical thin-shell wormholes in scalar-tensor theories

TL;DR

This paper constructs and analyzes the stability of spherically symmetric thin-shell wormholes within scalar-tensor theories, demonstrating that stable configurations can exist under certain parameter conditions.

Contribution

It introduces a new family of thin-shell wormholes in scalar-tensor gravity and examines their stability under radial perturbations, including a specific Einstein-Maxwell scalar field example.

Findings

Stable wormhole configurations are possible with appropriate parameters.

The formalism applies to Einstein-Maxwell gravity with conformally invariant scalar fields.

Static symmetric wormholes can be stable under radial perturbations.

Abstract

In this article, we construct a family of spherically symmetric thin-shell wormholes within scalar-tensor theories of gravity. In the case of wormholes symmetric across the throat, we study the matter content and analyze the stability of the static configurations under radial perturbations. We apply the formalism to a particular example involving Einstein-Maxwell gravity coupled to a conformally invariant scalar field. We show that stable configurations are possible for suitable values of the parameters involved.