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Related papers: Detecting axion dark matter beyond the magnetoquas…

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We propose an approach to search for axion dark matter with a specially designed superconducting radio frequency cavity, targeting axions with masses $m_a \lesssim 10^{-6} \text{ eV}$. Our approach exploits axion-induced transitions between…

We propose a novel broadband strategy to search for axions by leveraging observables controlled by the axion field squared. We present a practical implementation of this concept for probing the axion--photon coupling. This is done by…

High Energy Physics - Phenomenology · Physics 2026-05-13 Angelo Esposito , Kin Chung Fong , Lam Hui

Axions are a theoretically promising dark matter (DM) candidate. In the presence of radiation from bright astrophysical sources at radio frequencies, nonrelativistic DM axions can undergo stimulated decay to two nearly back-to-back photons,…

High Energy Physics - Phenomenology · Physics 2022-03-25 Yitian Sun , Katelin Schutz , Anjali Nambrath , Calvin Leung , Kiyoshi Masui

Cosmological axions/axion-like particles can compose a significant part of dark matter; however, the uncertainty of their mass is large. Here, we propose to search the axions using a cylindrical capacitor, in which the static electric field…

High Energy Physics - Phenomenology · Physics 2024-06-21 Wenming Chen , Yu Gao , Qiaoli Yang

The QCD axion, originally proposed to solve the strong CP problem in QCD, is a prominent candidate for dark matter (DM). In the presence of strong magnetic fields, such as those around neutron stars, axions can theoretically convert into…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 Luca Visinelli , Bradley Johnson , Bradley J. Kavanagh , David J. E. Marsh , Jordan E. Shroyer , Liam Walters

The oscillating light axion field is known as wave dark matter. We propose an LC-resonance enhanced detection of the narrow band electric signals induced by the axion dark matter using a solenoid magnet facility. We provide full 3D…

High Energy Physics - Phenomenology · Physics 2023-05-02 Junxi Duan , Yu Gao , Chang-Yin Ji , Sichun Sun , Yugui Yao , Yun-Long Zhang

Axion dark matter can be converted into photons in the magnetospheres of neutron stars leading to a spectral line centred on the Compton wavelength of the axion. Due to the rotation of the star and the plasma effects in the magnetosphere…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-29 R. A. Battye , M. J. Keith , J. I. McDonald , S. Srinivasan , B. W. Stappers , P. Weltevrede

The search for axions has gained ground in recent years, with laboratory searches for cold dark matter (CDM) axions, relativistic solar axions and ultra-light axions the subject of extensive literature. In particular, the interest in axions…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-07 Katharine Kelley , P. J. Quinn

Existence of dark matter indicates the presence of unknown fundamental laws of nature. Ultralight axion-like particles are well-motivated dark matter candidates, emerging naturally from theories of physics at ultrahigh energies. We report…

High Energy Physics - Experiment · Physics 2021-01-11 Alexander V. Gramolin , Deniz Aybas , Dorian Johnson , Janos Adam , Alexander O. Sushkov

Terrestrial searches for the conversion of dark matter axions or axion-like particles into photons inside magnetic fields are sensitive to the phase space structure of the local Milky Way halo. We simulate signals in a hypothetical future…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-29 Ciaran A. J. O'Hare , Anne M. Green

The natural environment of the Earth can act as a sensitive detector for dark matter in ultralight axions. When axions with masses between $1\times10^{-15}\,{\rm eV}$ and $1\times10^{-13}\,{\rm eV}$ pass through the Earth, they interact…

High Energy Physics - Phenomenology · Physics 2025-04-23 Atsushi Nishizawa , Atsushi Taruya , Yoshiaki Himemoto

Axions provide a natural and well-motivated dark matter candidate, with the capability to convert directly to photons in the presence of an electromagnetic field. A particularly compelling observational target is the conversion of dark…

The potential to detect axion dark matter through astrophysical processes has shown high promise in recent years. We therefore expand on previous work studying the axion-to-photon conversion efficacy of neutron stars and the interstellar…

High Energy Astrophysical Phenomena · Physics 2026-05-15 Felix Weber , Vikram Ravi

The QCD axion is one of the most compelling candidates to explain the dark matter abundance of the universe. With its extremely small mass ($\ll 1\,\mathrm{eV}/c^2$), axion dark matter interacts as a classical field rather than a particle.…

The ADAMOS (Axion Daily Modulation Searches) project aims to explore the nature of dark matter (DM) through a novel axion haloscope experiment. We propose to construct a fixed-frequency cavity resonator operating at 20 GHz at the University…

High Energy Physics - Experiment · Physics 2026-03-20 Marios Maroudas , Toma-Stefan Cezar , Antonios Gardikiotis , Dieter Horns

In dark matter axion searches, quantum uncertainty manifests as a fundamental noise source, limiting the measurement of the quadrature observables used for detection. We use vacuum squeezing to circumvent the quantum limit in a search for a…

Axion Dark Matter eXperiment (ADMX) ultra low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the $2.66$ to $3.1$ $\mu$eV mass range with…

Axion dark matter passing through the magnetospheres of magnetars can undergo hyper-efficient resonant mixing with low-energy photons, leading to the production of narrow spectral lines that could be detectable on Earth. Since this is a…

High Energy Physics - Phenomenology · Physics 2025-05-28 Sandip Roy , Anirudh Prabhu , Christopher Thompson , Samuel J. Witte , Carlos Blanco , Jonathan Zhang

Axion dark matter coupled via QCD induces a non-zero differential acceleration between test masses of different composition. Tests of the equivalence principle, like the recent MICROSCOPE space mission, are sensitive to such a signal. We…

High Energy Physics - Phenomenology · Physics 2025-04-02 Jordan Gué , Peter Wolf , Aurélien Hees

Axion dark matter (DM) is predicted to convert into radio waves in neutron star magnetospheres. We assess the detectability of this signal using a 5 m radio telescope to be installed at the Fan Mountain Observatory, operating in the UHF, L-…