Atom-like quantum systems in solids have been proposed as a compact alternative for atomic clocks, but realizing the potential of solid-state technology will requires an architecture design which overcomes traditional limitations such as magnetic and temperature-induced systematics. Here, we propose a solution to this problem: a `solid-state spin clock' that hybridizes a microwave resonator with a magnetic-field-insensitive spin transition within the ground state of the diamond nitrogen-vacancy center. Detailed numerical and analytical modeling of this `polariton-stabilized' spin clock (PSSC) indicates a potential fractional frequency instability below 10−13 at 1 second measurement time, assuming present-day experimental parameters. This stability would represent a significant improvement over the state-of-the-art in miniaturized atomic vapor clocks.
@article{arxiv.2009.02427,
title = {A Polariton-Stabilized Spin Clock},
author = {Matthew E. Trusheim and Kurt Jacobs and Jonathan E. Hoffman and Donald P. Fahey and Danielle A. Braje and Dirk R. Englund},
journal= {arXiv preprint arXiv:2009.02427},
year = {2020}
}