Abstract
We propose a new broadband search strategy for ultralight axion dark matter that interacts with electromagnetism. An oscillating axion field induces transitions between two quasidegenerate resonant modes of a superconducting cavity. In two broadband runs optimized for high and low masses, this setup can probe unexplored parameter space for axionlike particles covering 15 orders of magnitude in mass, including astrophysically long-ranged fuzzy dark matter.
- Received 18 August 2020
- Accepted 1 December 2021
DOI:https://doi.org/10.1103/PhysRevD.104.L111701
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society