We report observations of Ramsey interferences and spin echoes from electron spins inside a levitating macroscopic particle. The experiment is realized using nitrogen-vacancy (NV) centers hosted in a micron-sized diamond stored in a Paul trap both under atmospheric conditions and under vacuum. Spin echoes are used to show that the Paul trap preserves the coherence time of the embedded electron spins for more than microseconds. Conversely, the NV spin is employed to demonstrate high angular stability of the diamond even under vacuum. These results are significant steps towards strong coupling of NV spins to the rotational mode of levitating diamonds.
@article{arxiv.1801.07798,
title = {Ramsey interferences and spin echoes from electron spins inside a levitating macroscopic particle},
author = {T. Delord and P. Huillery and L. Schwab and L. Nicolas and L. Lecordier and G. Hétet},
journal= {arXiv preprint arXiv:1801.07798},
year = {2018}
}
Comments
16 pages, 15 figures. New version with spin echoes