Supersymmetric Bag Model as a Development of the Witten Superconducting String

TL;DR

This paper explores a supergravity-based particle model where a phase transition near a black hole singularity creates a stable, superconducting core, controlled by gravity despite weak local gravitational effects.

Contribution

It introduces a supersymmetric BPS domain wall model that facilitates a controlled phase transition forming a stable superconducting core in a supergravity context.

Findings

Regularized black hole singularity with a superconducting vacuum

Controlled phase transition by gravity in supergravity model

Formation of a stable charged superconducting core

Abstract

We consider particlelike solutions to supergravity based on the Kerr-Newman BH solution. The BH singularity is regularized by means of a phase transition to a new superconducting vacuum state near the core region. We show that this phase transition can be controlled by gravity in spite of the extreme smallness of the local gravitational field. Supersymmetric BPS domain wall model is suggested which can provide this phase transition and formation the stable charged (dual) superconducting core.