Zeeman Splitting of Photonic Angular Momentum States in Gyromagnetic Cylinder

TL;DR

This paper demonstrates that a static magnetic field causes Zeeman-like splitting of photonic angular momentum states in a gyromagnetic cylinder, revealing unique decoupling properties through numerical simulations.

Contribution

It introduces the phenomenon of Zeeman splitting in photonic angular momentum states within gyromagnetic cylinders under magnetic fields, a novel effect in photonics.

Findings

Photon eigen-frequencies split proportionally to angular momentum density.

Unusual decoupling properties of non-degenerate states observed.

Numerical simulations confirm the theoretical predictions.

Abstract

We show that under the presence of a static magnetic field the photon eigen-frequencies of a circular gyromagnetic cylinder experience a splitting that is proportional to the angular momentum density of light at the cylinder surface. Such a splitting of the photonic states is similar to the Zeeman splitting of electronic states in atoms. This leads to some unusual decoupling properties of these non-degenerate photonic angular momentum states, which are demonstrated through numerical simulations.