Detecting Axion Dark Matter with an Organic Molecular Maser
High Energy Physics - Phenomenology
2025-12-23 v2 Quantum Physics
Abstract
We present a novel quantum sensing approach to search for axion-electron interactions around the axion mass of 6 \mueV. In this region, laboratory searches are relatively scarce, and our direct experiment measuring the axion-electron coupling constant reaches the sensitivity of 8 \times 10^{-6} GeV^{-1}. The method, based on an organic molecular maser establishes a proof-of-principle for quantum-enhanced detection, with a corresponding magnetic field sensitivity of 0.85 fT/\sqrt{\rm{Hz}}. The methodology is generic and can be readily extended to other physical systems, further broadening its applicability in quantum sensing and dark matter searches.
Keywords
Cite
@article{arxiv.2512.17271,
title = {Detecting Axion Dark Matter with an Organic Molecular Maser},
author = {Hongliang Wu and Yuchen Han and Zhengtao Wang and Dezhi Zheng and Yeliang Wang and Liu Yang and Zhiwei Wang and Bo Zhang and Dmitry Budker and Jun Zhang},
journal= {arXiv preprint arXiv:2512.17271},
year = {2025}
}