Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session V36: Magnetic Imaging
3:00 PM–6:00 PM,
Thursday, March 18, 2021
Sponsoring Units: GMAG DMP
Chair: Andreas Berger, CIC nanoGUNE
Abstract: V36.00006 : NV- center magnetometry using Bayesian inference and sequential experiment design
4:24 PM–4:36 PM
Sean M Blakley
(Wichita State University)
(National Institute of Standards and Technology)
The NV- center is a quantum defect with spin 1 and coherence time up to several milliseconds at room temperature. Zeeman splitting of the NV- energy levels allows detection of the magnetic field via photoluminescence. NV- center is a promising platform for magnetometry, quantum computing and sensing.
We compare conventional magnetic field measurement of fluorescence under pre-determined sweeps of microwave frequency with the measurement using a Bayesian inference and sequential experiment design. In the Bayesian experiment design, the frequency of each measurement is determined in real-time from utility predictions based on the accumulated experimental data. We report 45 times speedup with sequential Bayesian experimental design, compared with the conventional NV- magnetometry [1,2].
 S. Dushenko. K. Ambal, R.D. McMichael, “Sequential Bayesian experiment design for optically detected magnetic resonance of nitrogen-vacancy centers”, Phys. Rev. Appl. accepted (2020).
 R.D. McMichael, Optimal Bayesian Experiment Design Software Documentation "https://pages.nist.gov/optbayesexpt/"
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700