Bargmann-Michel-Telegdi equation and one-particle relativistic approach

TL;DR

This paper reexamines the semiclassical relativistic electron model, suggesting that helicity may vary under static electric and magnetic fields due to zitterbewegung effects linked to the anomalous magnetic moment.

Contribution

It introduces a revised understanding of electron helicity variation in static fields within a relativistic framework considering zitterbewegung effects.

Findings

Helicity can vary in static electric and magnetic fields.

Zitterbewegung effects influence the electron's magnetic properties.

The anomalous magnetic moment plays a key role in helicity changes.

Abstract

A reexamination of the semiclassical approach of the relativistic electron indicates a possible variation of its helicity for electric and magnetic static fields applied along its global motion due to zitterbewegung effects, proportional to the anomalous part of the magnetic moment.