Hybrid quantum magnetic-field sensor with an electron spin and a nuclear spin in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2016-11-22 |
| Journal | Physical review. A/Physical review, A |
| Authors | Yuichiro Matsuzaki, Takaaki Shimo-Oka, Hirotaka Tanaka, Y. Tokura, Kouichi Semba |
| Institutions | NTT Basic Research Laboratories, National Institute of Information and Communications Technology |
| Citations | 22 |
Abstract
Section titled āAbstractāRecently, magnetic field sensors based on an electron spin of a nitrogen\nvacancy (NV) center in diamond have been studied both from an experimental and\ntheoretical point of view. This system provides a nanoscale magnetometer, and\nit is possible to detect a precession of a single spin. In this paper, we\npropose a sensor consisting of an electron spin and a nuclear spin in diamond.\nAlthough the electron spin has a reasonable interaction strength with magnetic\nfield, the coherence time of the spin is relatively short. On the other hand,\nthe nuclear spin has a longer life time while the spin has a negligible\ninteraction with magnetic fields. We show that, through the combination of such\ntwo different spins via the hyperfine interaction, it is possible to construct\na magnetic field sensor with the sensitivity far beyond that of previous\nsensors using just a single electron spin.\n