Probe chameleon dark energy with the coupling between a levitated nanodiamond and the single-spin
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-09-11 |
| Journal | Classical and Quantum Gravity |
| Authors | J. Liu, Ka-Di Zhu |
| Institutions | Shanghai Jiao Tong University, Collaborative Innovation Center of Advanced Microstructures |
| Citations | 2 |
Abstract
Section titled āAbstractāThe chameleon scalar field is a dark energy candidate with the screening mechanism. In the present article we provide a spectral scheme to search the chameleon field between an optically levitated nanodiamond with a nitrogen-vacancy (NV) center and a silicon microsphere. The results show that a large optical nonlinear effect with ultranarrow bandwidth can be induced by the coupling of single spin and the levitated resonator. We find that the oscillator will present a distinct shift due to the chameleons, and the shift can be read out on the probe spectrum. Considering the noise limit, this constraint is about 2-3 orders of magnitude stronger than the ones from atom interferometry under the ultralow pressure. We expect this technique will become a valuable tool in optimizing future searches for chameleon fields and related theories.