Thin-shell wormholes from regular charged black holes

TL;DR

This paper constructs a new thin-shell wormhole by joining two regular charged black holes from nonlinear electrodynamics, analyzing its stability and energy conditions.

Contribution

It introduces a novel thin-shell wormhole model from regular charged black holes and examines its stability under different conditions.

Findings

Stress-energy violates null and weak energy conditions

Stable under certain equations of state and perturbations

Obeys the strong energy condition

Abstract

We investigate a new thin-shell wormhole constructed by surgically grafting two regular charged black holes arising from the action using nonlinear electrodynamics coupled to general relativity. The stress-energy components within the shell violate the null and weak energy conditions but obey the strong energy condition. We study the stability in two ways: (i) taking a specific equation of state at the throat and (ii) analyzing the stability to linearized spherically symmetric perturbations about a static equilibrium solution. Various other aspects of this thin-shell wormhole are also analyzed.