Searching spin-mass interaction using a diamagnetic levitated magnetic-resonance force sensor
Open Access
- 4 March 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Research
- Vol. 3 (1), 013205
- https://doi.org/10.1103/physrevresearch.3.013205
Abstract
Axion-like particles (ALPs) are predicted to mediate exotic interactions between spin and mass. We propose an ALP-searching experiment based on the levitated micromechanical oscillator, which is one of the most sensitive sensors for spin-mass forces at a short distance. The proposed experiment tests the spin-mass resonant interaction between the polarized electron spins and a diamagnetically levitated microsphere. By periodically flipping the electron spins, the contamination from nonresonant background forces can be eliminated. The levitated microoscillator can prospectively enhance the sensitivity by nearly times over current experiments for ALPs with mass in the range 4 meV to 0.4 eV.
Funding Information
- National Basic Research Program of China (2018YFA0306600)
- National Natural Science Foundation of China (61635012, 11675163, 11890702, 12075115, 81788101, 11761131011, 11722544, U1838104)
- Chinese Academy of Sciences (QYZDY-SSW-SLH004, GJJSTD20170001, Y95461A0U2)
- Fundamental Research Funds for the Central Universities (021314380149)
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