Phonons are considered to be universal quantum transducers due to their ability to couple to a wide variety of quantum systems. Among these systems, solid-state point defect spins are known for being long-lived optically accessible quantum memories. Recently, it has been shown that inversion-symmetric defects in diamond, such as the negatively charged silicon vacancy center (SiV), feature spin qubits that are highly susceptible to strain. Here, we leverage this strain response to achieve coherent and low-power acoustic control of a single SiV spin, and perform acoustically driven Ramsey interferometry of a single spin. Our results demonstrate a novel and efficient method of spin control for these systems, offering a path towards strong spin-phonon coupling and phonon-mediated hybrid quantum systems.
@article{arxiv.1910.09710,
title = {Coherent Acoustic Control of a Single Silicon Vacancy Spin in Diamond},
author = {Smarak Maity and Linbo Shao and Stefan Bogdanović and Srujan Meesala and Young-Ik Sohn and Neil Sinclair and Benjamin Pingault and Michelle Chalupnik and Cleaven Chia and Lu Zheng and Keji Lai and Marko Lončar},
journal= {arXiv preprint arXiv:1910.09710},
year = {2020}
}
Comments
Fixed errors in numbering of references, separated manuscript and supplementary info