Stabilization of Neutral Thin Shells By Gravitational Effects From Electric Fields

TL;DR

This paper demonstrates that gravitational effects from an enclosed electric charge can stabilize neutral thin shells, such as dust or string gas shells, in static configurations and explores their dynamical behaviors including child universe formation.

Contribution

The study introduces a novel stabilization mechanism for neutral shells using gravitational effects from enclosed electric charges, expanding understanding of shell stability in general relativity.

Findings

Neutral shells can be stabilized by gravitational effects of enclosed electric charges.

Static stable configurations are possible for both dust and string gas shells.

Dynamical behaviors include potential child universe creation.

Abstract

We study the properties of a system consisting of an uncharged spherically symmetric two dimensional extended object which encloses a stationary point charge placed in the shell's center. We show that there can be a static and stable configuration for the neutral shell, using only the gravitational field of the charged source as a stabilizing mechanism. In particular, two types of shells are studied: a dust shell and a string gas shell. The dynamical possibilities are also analyzed, including the possibility of child universe creation.