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Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology

P. A. Stuermer, D. Wirtitsch, T. Steidl, R. W\"ornle, J. K\"orber, W. Schustereder, C. Zmoelnig, P. Urlesberger, F. Chiapolino, S. Meinardi, K. Edelmann, M. Kern, J. Anders, S. Krainer, H. Heiss, M. Trupke, J. Wrachtrup
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⚡ Quantum Brief
Researchers demonstrated a scalable quantum magnetometer chip using 4H-silicon carbide (SiC) technology, leveraging wafer-scale fabrication to optimize V2 silicon vacancy color centers for industrial reproducibility. The chip integrates color center ensembles into planar SiC waveguides, enabling efficient excitation and simplified fluorescence extraction—outperforming standard confocal methods by 2-3 orders of magnitude in shot-noise-limited sensitivity. Experiments included continuous-wave optically detected magnetic resonance, Rabi, Ramsey, and Hahn-echo sequences, proving coherent control of large embedded V2 center ensembles for high-performance sensing. This breakthrough simplifies quantum sensor architecture by streamlining optical excitation and collection, reducing complexity while maintaining high sensitivity for real-world applications. The advancement paves the way for next-generation SiC-based quantum sensing technologies, combining industrial scalability with power efficiency and precision.
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Quantum Physics arXiv:2601.08945 (quant-ph) [Submitted on 13 Jan 2026] Title:Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology Authors:P. A. Stuermer, D. Wirtitsch, T. Steidl, R. Wörnle, J. Körber, W. Schustereder, C. Zmoelnig, P. Urlesberger, F. Chiapolino, S. Meinardi, K. Edelmann, M. Kern, J. Anders, S. Krainer, H. Heiss, M. Trupke, J. Wrachtrup View a PDF of the paper titled Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology, by P. A. Stuermer and 15 other authors View PDF HTML (experimental) Abstract:This work presents an industrially scalable, power-efficient and high-performance quantum magnetometer chip based on proprietary 4H-silicon carbide (SiC) technology, leveraging wafer-scale fabrication techniques to optimize V2 silicon vacancy color centers for highly reproducible, industry-grade fabrication with precise control of depth and density. The integration of these color center ensembles into a planar silicon carbide waveguide enables efficient excitation of a large ensemble and simplifies fluorescence extraction compared to standard confocal methods. We report continuous-wave (CW) optically detected magnetic resonance measurements, complemented by Rabi, Ramsey, and Hahn-echo sequences, which demonstrate coherent capabilities of the large embedded ensemble of V2 centers. Based on the data, our device exhibits sensor shot-noise limited sensitivities 2-3 orders of magnitude lower compared to more complex confocal techniques. Collectively, these advancements simplify the quantum sensor architecture, enhance sensitivity, and streamline optical excitation and collection, thereby paving the way for the development of next-generation SiC-quantum sensing technologies. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2601.08945 [quant-ph] (or arXiv:2601.08945v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2601.08945 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Peter A. Stuermer [view email] [v1] Tue, 13 Jan 2026 19:28:18 UTC (836 KB) Full-text links: Access Paper: View a PDF of the paper titled Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology, by P. A. Stuermer and 15 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-01 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)

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