Microwave Spin Control of a Tin-Vacancy Qubit in Diamond
- URL: http://arxiv.org/abs/2306.13199v2
- Date: Wed, 30 Aug 2023 16:49:18 GMT
- Title: Microwave Spin Control of a Tin-Vacancy Qubit in Diamond
- Authors: Eric I. Rosenthal, Christopher P. Anderson, Hannah C. Kleidermacher,
Abigail J. Stein, Hope Lee, Jakob Grzesik, Giovanni Scuri, Alison E. Rugar,
Daniel Riedel, Shahriar Aghaeimeibodi, Geun Ho Ahn, Kasper Van Gasse, and
Jelena Vuckovic
- Abstract summary: The negatively charged tin-vacancy (SnV-) center in diamond is a promising solid-state qubit for applications in quantum networking.
Here, by use of a naturally strained center, we overcome this limitation and achieve high-fidelity microwave spin control.
Results pave the way for SnV- spins to be used as a building block for future quantum technologies.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: 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.
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