Highly Accurate Measurement of the Electron Orbital Magnetic Moment

TL;DR

This paper introduces a method to precisely measure the electron's orbital magnetic moment by analyzing the ratio of Lande g-factors in atomic states, enabling refined correction estimates.

Contribution

It presents a novel measurement technique using Magneto-Optical or Ion trap setups to determine the electron orbital g-factor correction with high accuracy.

Findings

Estimated correction to the orbital g-factor: (-1.8 +/- 0.4) x 10^-4

Method allows extraction of g-factor corrections from atomic state measurements

Improves precision in understanding electron magnetic properties

Abstract

We propose to accurately determine the orbital magnetic moment of the electron by measuring, in a Magneto-Optical or Ion trap, the ratio of the Lande g-factors in two atomic states. From the measurement of (gJ1/gJ2), the quantity A, which depends on the corrections to the electron g-factors can be extracted, if the states are LS coupled. Given that highly accurate values of the correction to the spin g-factor are currently available, accurate values of the correction to the orbital g-factor may also be determined. At present, (-1.8 +/- 0.4) x 10-4 has been determined as a correction to the electron orbital g-factor, by using earlier measurements of the ratio gJ1/gJ2, made on the Indium 2P1/2 and 2P3/2 states.