QSense OIST Mini-Symposium Talk 11: "Searching for Exotic Spin-dependent Interactions by NV Centers"

Speaker: Prof Jiangfeng Du, Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China

Searching for Exotic Spin-dependent Interactions by NV Centers
(QSense OIST Mini Symposium Talk 11)​

The dynamics of the NV centers in diamond can be well controlled and understood by quantum technologies. Thus NV centers can be utilized as promising platforms for quantum computation and quantum sensing. Here, I would like to introduce our recent progress in a novel application of NV centers. We proposed that single-spin qubits, such as NV-centers in the diamond, can be utilized as quantum senor for dark matter searching. By observing and analyzing of the dynamics of the spin system, we have experimentally searched for exotic spin-dependent interactions mediated by axion-like particles [1,2,3,4,5]. Reference

[1] X. Rong, et al., Nature communications 9, 1-7 (2018)
[2] X. Rong, et al., Physical review letters 121, 080402 (2018)
[3] Man Jiao, et al., Physical Review D 101, 115011 (2020)
[4] Man Jiao, et al., arXiv:2009.09257 (2020)
[5] X. Rong, et al., arXiv:2010.15667 (2020)

OIST Mini-Symposium for Quantum Sensors of Magnetic and Inertial Forces

This mini-symposium is hosted by the Quantum Machines Unit in the Okinawa Institute of Science and Technology Graduate University, and will take place from Feb 1, 2021 - March 5, 2021. To get the precise schedule and zoom invitation please register below. Attendance is open to any student/faculty member from any of the institutions associated with the speakers.

Summary

Quantum systems are extremely fragile, sensitive to noise and fluctuations by their environments. This, in turn, makes them excellent sensors for a variety of forces and fields. In this mini-symposium we focus on the development of novel quantum sensors which are aimed at the precision sensing of inertial forces such as acceleration or gravity, and magnetic forces.

Such sensors - accelerometers/gravimeters or magnetometers, have a widespread application in industry such as sensing underground water movements using gravimeters, through to magnetic brain imaging using magnetoencephelography. Each week we hear from three international experts on these topics in hour-long seminars and discussions.

For more information, visit the QSense website.