Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session N39: Quantum Metrology and Sensing I
11:30 AM–2:30 PM,
Wednesday, March 16, 2022
Room: McCormick Place W-196A
Sponsoring
Unit:
DQI
Chair: Brian Zhou, Boston College
Abstract: N39.00008 : High Magnetic Field Quantum Sensing via Hyperpolarized Nuclei*
1:18 PM–1:30 PM
Presenter:
Ozgur Sahin
(University of California, Berkeley)
Authors:
Ozgur Sahin
(University of California, Berkeley)
Erica de Leon Sanchez
(University of California, Berkeley)
Sophie Conti
(University of California, Berkeley)
Amala Akkiraju
(University of California, Berkeley)
Aakriti Aggarwal
(University of California, Berkeley)
Harlen S Oaks
(University of California, Berkeley)
Paul Reshetikhin
(University of California, Berkeley)
Emanuel Druga
(University of California, Berkeley)
Benjamin Gilbert
(Energy Geoscience Division, Lawrence Berkeley National Laboratory)
Sunil A Bhave
(Purdue University)
Ashok Ajoy
(University of California, Berkeley)
regime is advantageous since it naturally enables chemical shift discrimination and allows higher analyte polarization.
Here we propose and demonstrate a high-field (7T) quantum sensor constructed from hyperpolarized
13C nuclear spins in diamond. The 13C nuclei are initialized via Nitrogen-Vacancy (NV) centers and protected
along a transverse Bloch sphere axis for minute-long periods. When exposed to a time-varying (AC) magnetic
field, they undergo secondary precessions that contain a direct imprint of its frequency. We demonstrate that
high sensitivity and resolution is feasible by harnessing the long rotating frame 13C sensor lifetimes T2'>20 s, over
106 greater than their NV center counterparts, and their ability to be continuously interrogated. For quantum
sensing at 7 T, we demonstrate spectral resolution better than 70 mHz (corresponding to a precision 1 ppm) and
sensitivity better than 20 nT/vHz for a single crystal sample. We discuss the advantages of nuclear magnetometers over conventional NV center
sensors, including deployability in randomly-oriented diamond particles, in optically scattering media, and in a
wide range of bias field environments (1-20 T). Fundamentally, our technique with densely-packed 13C nuclei
demonstrates a new approach for quantum sensing in the “coupled-sensor” limit. This work points to intriguing
opportunities for “targeted” microscale NMR chemical sensors constructed from hyperpolarized
nanodiamonds and portends applications of dynamic nuclear polarization (DNP) in quantum sensing.
*This work was funded by ONR under N00014-20-1-2806.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2025 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700