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Published January 10, 2020 | Published + Supplemental Material
Journal Article Open

Coherent acoustic control of a single silicon vacancy spin in diamond

Abstract

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 an efficient method of spin control for these systems, offering a path towards strong spin-phonon coupling and phonon-mediated hybrid quantum systems.

Additional Information

© 2020 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received 10 October 2019; Accepted 29 November 2019; Published 10 January 2020. The authors thank Amirhassan Shams-Ansari, Bartholomeus Machielse, Graham Joe, Jeffrey Holzgrafe, Yeghishe Tsaturyan, and Ben Green for helpful discussions. We thank Matthew Markham and Daniel Twitchen from Element Six Ltd. for providing diamond samples. This work was supported by the Center for Integrated Quantum Materials (NSF grant No. DMR-1231319), ONR MURI on Quantum Optomechanics (Grant No. N00014-15-1-2761), NSF EFRI ACQUIRE (Grant No. 5710004174), NSF GOALI (Grant No. 1507508), Army Research Laboratory Center for Distributed Quantum Information Award No. W911NF1520067, and ARO MURI (Grant No. W911NF1810432). Device fabrication was performed at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the National Science Foundation under NSF Award No. 1541959. CNS is part of Harvard University. The microwave impedance microscopy was supported by NSF Grant No. DMR-1707372, and was performed at University of Texas at Austin. N.S. acknowledges support by the Natural Sciences and Engineering Research Council of Canada (NSERC), the AQT Intelligent Quantum Networks and Technologies (INQNET) research program, and by the DOE/HEP QuantISED program grant, QCCFP (Quantum Communication Channels for Fundamental Physics), award number DE-SC0019219. Data availability: The datasets generated and/or analysed during this study are available from the corresponding author on reasonable request. Author Contributions: S.Maity and L.S. designed the devices with help from Y.-I.S. S. Maity fabricated the devices with help from L.S. and C.C. S. Maity, S.B. and L.S. performed experimental measurements with help from S. Meesala and M.C. L.S., L.Z. and K.L. performed microwave impedance microscopy measurements. S. Maity, N.S. and B.P. analyzed experimental data. S. Maity and S.B. prepared the manuscript with help from all authors. M.L. supervised this project. The authors declare no competing interests.

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Additional details

Created:
August 19, 2023
Modified:
October 18, 2023