Efficient Real-Time Spin Readout of Nitrogen-Vacancy Centers Based on Bayesian Estimation
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-01-24 |
| Journal | IEEE Transactions on Industrial Electronics |
| Authors | Jixing Zhang, Tianzheng Liu, Heng Yuan, Sigang Xia, Guodong Bian |
| Institutions | HUN-REN Wigner Research Centre for Physics, GoerTek (China) |
| Citations | 4 |
Abstract
Section titled āAbstractāThis article introduces a real-time Bayesian estimation algorithm aimed at enhancing the spin readout efficiency of the nitrogen vacancy (NV) center ensemble in the diamond. By integrating both the prior probability distribution and the fluorescence likelihood function, stemming from the implementation of the NV center dynamics model, we offered an innovative solution to surpass the Cramer-Rao lower bound of the readout variance and improve the readout efficiency. The proposed real-time Bayesian estimation readout algorithm was experimentally realized by combining high-performance acquisition and processing hardware, and the Rabi oscillation experiments divulged that the signal-to-noise ratio of our approach was improved by 28.6%. This research illustrates the potential of the Bayesian estimation readout to enhance the NV ensembleās sensing capabilities and support the development of compact and scalable quantum sensors devices on a monolithic platform.