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Constraining ultralight dark matter through an accelerated resonant search
- Source :
- Communications Physics, Vol 7, Iss 1, Pp 1-12 (2024)
- Publication Year :
- 2024
- Publisher :
- Nature Portfolio, 2024.
-
Abstract
- Abstract Typical weak signal search experiments rely on resonant effects, where the resonance frequency is scanned over a broad range, resulting in significant time consumption. In this study, we demonstrate an accelerated strategy that surpasses the typical resonance-bandwidth limited scan step without compromising sensitivity. We apply this method to an alkali-noble-gas spin system, achieving an approximately 30-fold increase in scanning step size. Additionally, we obtain an ultrahigh sensitivity of 1.29 fT ⋅ Hz−1/2 at around 5 Hz, corresponding to an energy resolution of approximately 1.8 × 10−23eV ⋅ Hz−1/2, which is among the highest quantum energy resolutions reported. Furthermore, we use this sensor to search for axion-like particles, setting stringent constraints on axion-like particles (ALPs) in the 4.5–15.5 Hz Compton-frequency range coupling to neutrons and protons, improving on previous limits by several-fold. This accelerated strategy has potential applications in other resonant search experiments.
- Subjects :
- Astrophysics
QB460-466
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 23993650
- Volume :
- 7
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Communications Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1cb0bbae62e343ff8142269a7f97d6a4
- Document Type :
- article
- Full Text :
- https://doi.org/10.1038/s42005-024-01713-7