Related Experiment Video
Updated: May 15, 2025
08:55
High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
Published on: October 9, 2020
5.4K
Dark matter search with a resonantly-coupled hybrid spin system
Summary
This study introduces a broadband quantum sensor for dark matter detection, enhancing search efficiency. New laboratory constraints were set on axion interactions with neutrons and protons.
Area of Science:
- Quantum Sensing
- Particle Physics
- Cosmology
Background:
- Tabletop quantum sensors are advancing dark matter (DM) searches.
- Conventional axion DM experiments require extensive scanning for broad mass range coverage.
Purpose of the Study:
- To develop a broadband approach for axion-like dark matter detection using a 21Ne spin system.
- To enhance the search bandwidth and set new constraints on axion interactions.
Main Methods:
- Utilized a 21Ne nuclear spin system with a broadband quantum sensor.
- Identified and exploited two distinct hybrid spin-coupled regimes: self-compensation and hybrid spin resonance.
- Conducted a comprehensive broadband search across 5 orders of magnitude in Compton frequencies [10^-2, 10^3] Hz.
Main Results:
- Achieved significantly enhanced bandwidth for 21Ne nuclear spin compared to conventional nuclear magnetic resonance.
- Set new laboratory constraints on axion-DM interactions with neutrons and protons, considering DM stochasticity.
- Established new best terrestrial constraints for axion-proton coupling in specific frequency ranges.
Conclusions:
- The broadband approach offers enhanced sensitivity and efficiency for dark matter searches.
- New constraints on axion-neutron and axion-proton couplings improve our understanding of dark matter interactions.
- This method surpasses astrophysical limits and provides the strongest laboratory constraints in certain frequency ranges.
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