Quantum Metrology with Strongly Interacting Spin Systems

peer-reviewed
Erstveröffentlichung
2020Autoren
Zhou, Hengyun
Choi, Joonhee
Choi, Soonwon
Landig, Renate
Douglas, Alexander M.
Wissenschaftlicher Artikel
Erschienen in
Physical review X ; 10 (2020), 3. - Art.-Nr. 031003. - ISSN 2160-3308
Link zur Originalveröffentlichung
https://dx.doi.org/10.1103/physrevx.10.031003Fakultäten
Fakultät für NaturwissenschaftenInstitutionen
Institut für QuantenoptikDokumentversion
Veröffentlichte Version (Verlags-PDF)Zusammenfassung
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.
EU-Projekt uulm
HyperQ / Quantum hyperpolarisation for ultrasensitive nuclear magnetic resonance and imaging / EC / H2020 / 856432
Schlagwörter
[GND]: Quantenmetrologie | Lumineszenz | Diamant | Ätzen | ODMR-Spektroskopie | Schrödinger-Gleichung[LCSH]: Luminescence | Electron paramagnetic resonance | Rotational motion | 3-dimensional ... | Diamonds | Etching | Schrödinger equation
[Freie Schlagwörter]: Coherent control | Dipolar interaction | Long-range interactions | Magnetic interactions | Nuclear & electron resonance | Quantum control | Quantum metrology | Quantum sensing | Quantum simulation | Spin dynamics | 0-dimensional systems | 3-dimensional systems | Diamond | Nitrogen vacancy centers in diamond | Magnetic moment | Confocal imaging | Electron spin resonance | Magnetization measurements | Many-body techniques | Optically detected magnetic resonance | Rotating wave approximation | Two-level models
[DDC Sachgruppe]: DDC 530 / Physics
Metadata
Zur LanganzeigeDOI & Zitiervorlage
Nutzen Sie bitte diesen Identifier für Zitate & Links: http://dx.doi.org/10.18725/OPARU-44133
Zhou, Hengyun et al. (2022): Quantum Metrology with Strongly Interacting Spin Systems. Open Access Repositorium der Universität Ulm und Technischen Hochschule Ulm. http://dx.doi.org/10.18725/OPARU-44133
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