Microwave Spin Control of a Tin-Vacancy Qubit in Diamond

Bibliographic Details
Title: Microwave Spin Control of a Tin-Vacancy Qubit in Diamond
Authors: Rosenthal, Eric I., Anderson, Christopher P., Kleidermacher, Hannah C., Stein, Abigail J., Lee, Hope, Grzesik, Jakob, Scuri, Giovanni, Rugar, Alison E., Riedel, Daniel, Aghaeimeibodi, Shahriar, Ahn, Geun Ho, Van Gasse, Kasper, Vuckovic, Jelena
Source: Phys. Rev. X 13, 031022 (2023)
Publication Year: 2023
Collection: Condensed Matter
Quantum Physics
Subject Terms: Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics
More Details: The negatively charged tin-vacancy (SnV-) center in diamond is a promising solid-state qubit for applications in quantum networking due to its high quantum efficiency, strong zero phonon emission, and reduced sensitivity to electrical noise. The SnV- has a large spin-orbit coupling, which allows for long spin lifetimes at elevated temperatures, but unfortunately suppresses the magnetic dipole transitions desired for quantum control. Here, by use of a naturally strained center, we overcome this limitation and achieve high-fidelity microwave spin control. We demonstrate a pi-pulse fidelity of up to 99.51+/0.03%$ and a Hahn-echo coherence time of T2echo = 170.0+/-2.8 microseconds, both the highest yet reported for SnV- platform. This performance comes without compromise to optical stability, and is demonstrated at 1.7 Kelvin where ample cooling power is available to mitigate drive induced heating. These results pave the way for SnV- spins to be used as a building block for future quantum technologies.
Comment: Final published version
Document Type: Working Paper
DOI: 10.1103/PhysRevX.13.031022
Access URL: http://arxiv.org/abs/2306.13199
Accession Number: edsarx.2306.13199
Database: arXiv
More Details
DOI:10.1103/PhysRevX.13.031022