Orientifold and stringy frame of the Kerr Spinning Particle

TL;DR

This paper models the Kerr spinning particle as a system of two topologically coupled strings, revealing new insights into its structure and electromagnetic excitations, with implications for microgeon models and superconducting string theories.

Contribution

It introduces a novel string-based framework for the Kerr spinning particle, incorporating an orientifold string and an axial string with superconducting properties.

Findings

The Kerr singular ring acts as an orientifold string with electromagnetic excitations.

An additional axial string emerges, carrying pp-waves and fermionic zero modes.

The axial string can be described by the Witten field model for superconducting strings.

Abstract

We show that the frame of the Kerr spinning particle consists of two topologically coupled strings. One of them is the Kerr singular ring representing a string with an orientifold world-sheet. It has electromagnetic excitations (traveling waves), which corresponds to the old model of the Kerr's microgeon. The excitations induce the appearance of the extra axial string which is topologically coupled to the Kerr circular string and is a carrier of pp-waves and fermionic zero modes. This string can be described by the Witten field model for superconducting strings.