An obstacle for spin-based quantum sensors is magnetic noise due to proximal spins. However, such a spin cluster surrounding the sensor can become an asset, if it can be controlled. Here, we polarize and readout a cluster of three nitrogen (N) electron spins coupled to a single nitrogen-vacancy (NV) spin in diamond. We further achieve sub-nm localization of the cluster spins. Finally, we demonstrate coherent spin exchange between the species by simultaneous dressing of the NV and the N states. These results establish the feasibility of environment-assisted sensing and quantum simulations with diamond spins.
@article{arxiv.1605.07552,
title = {Generation of a coherent electronic spin cluster in diamond},
author = {Helena S. Knowles and Dhiren M. Kara and Mete Atatüre},
journal= {arXiv preprint arXiv:1605.07552},
year = {2016}
}
Comments
Supplementary material can be found in the publications section of our website: http://www.amop.phy.cam.ac.uk/amop-ma