Quantum electrodynamic calculation of the hyperfine structure of 3He

TL;DR

This paper presents a quantum electrodynamic calculation of the hyperfine structure in helium-3, significantly improving theoretical accuracy and aligning well with recent experimental data.

Contribution

It introduces a high-precision QED calculation of helium-3's hyperfine structure, including effects up to order mα^6, enhancing the accuracy of theoretical predictions.

Findings

Results agree with recent spectroscopic measurements

Calculation increases theoretical accuracy by an order of magnitude

Provides detailed quantum electrodynamic analysis of hyperfine structure

Abstract

The combined fine and hyperfine structure of the $2^3P$ states in $^3$He is calculated within the framework of nonrelativistic quantum electrodynamics. The calculation accounts for the effects of order $m\alpha^6$ and increases the accuracy of theoretical predictions by an order of magnitude. The results obtained are in good agreement with recent spectroscopic measurements in $^3$He.