Positive Energy Wormholes Made from Normal Charges

TL;DR

This paper investigates the possibility of constructing positive-energy wormholes using normal charged matter, showing that their stress-energy can approximate a charged line-source and exhibit quantum-like corrections.

Contribution

It demonstrates how to approximate positive-energy wormholes with normal charges and identifies quantum electrodynamics corrections in the stress-energy expansion.

Findings

Stress-energy tensor can be made close to a charged line-source

The expansion reveals QED-like radiative corrections

Positive-energy wormholes are theoretically feasible with normal matter

Abstract

In this article we look at the class of positive-energy density wormholes introduced by Eiroa and Simeone, and ask the question "How close can we come to building this wormhole with normal, electrically charged matter?" Using a series expansion, we determine that the stress-energy tensor of the metric can be made arbitrarily close to that of a charged line-source by taking the exponent of the radial coordinate to be sufficiently small. We also find terms in the expansion which resemble QED radiative corrections to the Coulomb field of an electron.