Quantum Metrology with Strongly Interacting Spin Systems

Quantum metrology is a powerful tool for explorations of fundamental physical phenomena and applications in material science and biochemical analysis. While in principle the sensitivity can be improved by increasing the density of sensing particles, in practice this improvement is severely hindered...

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Autores principales:	Hengyun Zhou, Joonhee Choi, Soonwon Choi, Renate Landig, Alexander M. Douglas, Junichi Isoya, Fedor Jelezko, Shinobu Onoda, Hitoshi Sumiya, Paola Cappellaro, Helena S. Knowles, Hongkun Park, Mikhail D. Lukin
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/c506c2b999654eb9815b797086b9a2e3
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spelling	oai:doaj.org-article:c506c2b999654eb9815b797086b9a2e32021-12-02T11:58:09ZQuantum Metrology with Strongly Interacting Spin Systems10.1103/PhysRevX.10.0310032160-3308https://doaj.org/article/c506c2b999654eb9815b797086b9a2e32020-07-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.031003http://doi.org/10.1103/PhysRevX.10.031003https://doaj.org/toc/2160-3308Quantum metrology is a powerful tool for explorations of fundamental physical phenomena and applications in material science and biochemical analysis. While in principle the sensitivity can be improved by increasing the density of sensing particles, in practice this improvement is severely hindered by interactions between them. Here, using a dense ensemble of interacting electronic spins in diamond, we demonstrate a novel approach to quantum metrology to surpass such limitations. It is based on a new method of robust quantum control, which allows us to simultaneously suppress the undesired effects associated with spin-spin interactions, disorder, and control imperfections, enabling a fivefold enhancement in coherence time compared to state-of-the-art control sequences. Combined with optimal spin state initialization and readout directions, this allows us to achieve an ac magnetic field sensitivity well beyond the previous limit imposed by interactions, opening a new regime of high-sensitivity solid-state ensemble magnetometers.Hengyun ZhouJoonhee ChoiSoonwon ChoiRenate LandigAlexander M. DouglasJunichi IsoyaFedor JelezkoShinobu OnodaHitoshi SumiyaPaola CappellaroHelena S. KnowlesHongkun ParkMikhail D. LukinAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 3, p 031003 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Hengyun Zhou Joonhee Choi Soonwon Choi Renate Landig Alexander M. Douglas Junichi Isoya Fedor Jelezko Shinobu Onoda Hitoshi Sumiya Paola Cappellaro Helena S. Knowles Hongkun Park Mikhail D. Lukin Quantum Metrology with Strongly Interacting Spin Systems
description	Quantum metrology is a powerful tool for explorations of fundamental physical phenomena and applications in material science and biochemical analysis. While in principle the sensitivity can be improved by increasing the density of sensing particles, in practice this improvement is severely hindered by interactions between them. Here, using a dense ensemble of interacting electronic spins in diamond, we demonstrate a novel approach to quantum metrology to surpass such limitations. It is based on a new method of robust quantum control, which allows us to simultaneously suppress the undesired effects associated with spin-spin interactions, disorder, and control imperfections, enabling a fivefold enhancement in coherence time compared to state-of-the-art control sequences. Combined with optimal spin state initialization and readout directions, this allows us to achieve an ac magnetic field sensitivity well beyond the previous limit imposed by interactions, opening a new regime of high-sensitivity solid-state ensemble magnetometers.
format	article
author	Hengyun Zhou Joonhee Choi Soonwon Choi Renate Landig Alexander M. Douglas Junichi Isoya Fedor Jelezko Shinobu Onoda Hitoshi Sumiya Paola Cappellaro Helena S. Knowles Hongkun Park Mikhail D. Lukin
author_facet	Hengyun Zhou Joonhee Choi Soonwon Choi Renate Landig Alexander M. Douglas Junichi Isoya Fedor Jelezko Shinobu Onoda Hitoshi Sumiya Paola Cappellaro Helena S. Knowles Hongkun Park Mikhail D. Lukin
author_sort	Hengyun Zhou
title	Quantum Metrology with Strongly Interacting Spin Systems
title_short	Quantum Metrology with Strongly Interacting Spin Systems
title_full	Quantum Metrology with Strongly Interacting Spin Systems
title_fullStr	Quantum Metrology with Strongly Interacting Spin Systems
title_full_unstemmed	Quantum Metrology with Strongly Interacting Spin Systems
title_sort	quantum metrology with strongly interacting spin systems
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/c506c2b999654eb9815b797086b9a2e3
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Quantum Metrology with Strongly Interacting Spin Systems

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