Journal article
Quantum control of the tin-vacancy spin qubit in diamond
- Abstract:
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Group-IV color centers in diamond are a promising light-matter interface for quantum networking devices. The negatively charged tin-vacancy center (SnV) is particularly interesting, as its large spin-orbit coupling offers strong protection against phonon dephasing and robust cyclicity of its optical transitions toward spin-photon-entanglement schemes. Here, we demonstrate multiaxis coherent control of the SnV spin qubit via an all-optical stimulated Raman drive between the ground and excited states. We use coherent population trapping and optically driven electronic spin resonance to confirm coherent access to the qubit at 1.7 K and obtain spin Rabi oscillations at a rate of Ω/2π=19.0(1) MHz. All-optical Ramsey interferometry reveals a spin dephasing time of T∗2=1.3(3) μs, and four-pulse dynamical decoupling already extends the spin-coherence time to T2=0.30(8) ms. Combined with transform-limited photons and integration into photonic nanostructures, our results make the SnV a competitive spin-photon building block for quantum networks.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 875.4KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevX.11.041041
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review X More from this journal
- Volume:
- 11
- Issue:
- 4
- Article number:
- 41041
- Publication date:
- 2021-11-30
- Acceptance date:
- 2021-09-16
- DOI:
- EISSN:
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2160-3308
- Language:
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English
- Keywords:
- Pubs id:
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1303277
- Local pid:
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pubs:1303277
- Deposit date:
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2022-12-09
- ARK identifier:
Terms of use
- Copyright holder:
- Debroux et al.
- Copyright date:
- 2021
- Rights statement:
- Copyright © 2021 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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