Quantum Control of the Tin-Vacancy Spin Qubit in Diamond

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...

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Auteurs principaux:	Romain Debroux, Cathryn P. Michaels, Carola M. Purser, Noel Wan, Matthew E. Trusheim, Jesús Arjona Martínez, Ryan A. Parker, Alexander M. Stramma, Kevin C. Chen, Lorenzo de Santis, Evgeny M. Alexeev, Andrea C. Ferrari, Dirk Englund, Dorian A. Gangloff, Mete Atatüre
Format:	article
Langue:	EN
Publié:	American Physical Society 2021
Sujets:	Physics QC1-999
Accès en ligne:	https://doaj.org/article/22ed269b016c4c94b820ffcff44383ea
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spelling	oai:doaj.org-article:22ed269b016c4c94b820ffcff44383ea2021-11-30T15:34:06ZQuantum Control of the Tin-Vacancy Spin Qubit in Diamond10.1103/PhysRevX.11.0410412160-3308https://doaj.org/article/22ed269b016c4c94b820ffcff44383ea2021-11-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.041041http://doi.org/10.1103/PhysRevX.11.041041https://doaj.org/toc/2160-3308Group-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 T_{2}=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.Romain DebrouxCathryn P. MichaelsCarola M. PurserNoel WanMatthew E. TrusheimJesús Arjona MartínezRyan A. ParkerAlexander M. StrammaKevin C. ChenLorenzo de SantisEvgeny M. AlexeevAndrea C. FerrariDirk EnglundDorian A. GangloffMete AtatüreAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 4, p 041041 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Romain Debroux Cathryn P. Michaels Carola M. Purser Noel Wan Matthew E. Trusheim Jesús Arjona Martínez Ryan A. Parker Alexander M. Stramma Kevin C. Chen Lorenzo de Santis Evgeny M. Alexeev Andrea C. Ferrari Dirk Englund Dorian A. Gangloff Mete Atatüre Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
description	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 T_{2}=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.
format	article
author	Romain Debroux Cathryn P. Michaels Carola M. Purser Noel Wan Matthew E. Trusheim Jesús Arjona Martínez Ryan A. Parker Alexander M. Stramma Kevin C. Chen Lorenzo de Santis Evgeny M. Alexeev Andrea C. Ferrari Dirk Englund Dorian A. Gangloff Mete Atatüre
author_facet	Romain Debroux Cathryn P. Michaels Carola M. Purser Noel Wan Matthew E. Trusheim Jesús Arjona Martínez Ryan A. Parker Alexander M. Stramma Kevin C. Chen Lorenzo de Santis Evgeny M. Alexeev Andrea C. Ferrari Dirk Englund Dorian A. Gangloff Mete Atatüre
author_sort	Romain Debroux
title	Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
title_short	Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
title_full	Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
title_fullStr	Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
title_full_unstemmed	Quantum Control of the Tin-Vacancy Spin Qubit in Diamond
title_sort	quantum control of the tin-vacancy spin qubit in diamond
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/22ed269b016c4c94b820ffcff44383ea
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Quantum Control of the Tin-Vacancy Spin Qubit in Diamond

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