Muonium Spectroscopy as a Quantum Sensor for Axion Dark Matter.

Authors

Feng Fang, Kim Siang Khaw, Ce Zhang, Qiaoli Yang, Liangwen Chen, Jie Yang, Lei Yang, Zhiyu Sun

Published in

Physical review letters. Volume 137. Issue 11. Pages 111803. Sep 11, 2026.

Abstract

High-intensity muon beams could enable a muonium-based axion search through resonant quantum transitions between hyperfine states. Combining theoretical calculations with simulation results, we demonstrate that such a muonium-based experimental approach could complement and tighten constraints on the axion-muon coupling beyond existing limits from the muon g-2 measurement over the axion mass range of 18-130  μeV. These results establish a new spectroscopic channel in muonium that enables searches for axion and axionlike particle dark matter.

PMID:
42789879
Bibliographic data and abstract were imported from PubMed on 26 Sep 2026.

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