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Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation

Nived Johny, Jonas Junker, Bernd Schulte, Dennis Wilken, Klemens Hammerer, Mich\`ele Heurs
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⚡ Quantum Brief
Researchers demonstrated the first all-optical, tabletop system mimicking a negative-mass oscillator to suppress quantum noise in optomechanical sensors, achieving 3.6 dB broadband noise reduction—equivalent to a 77% cut in quantum back-action at peak frequencies. The breakthrough uses optical down-conversion and beam-splitting to replicate optomechanical interactions, creating a compact, wavelength-tunable platform for coherent quantum noise cancellation (CQNC) without mechanical components. Conventional characterization methods failed due to the system’s complexity, prompting the team to develop an in-situ scheme that successfully validated parameters meeting prior CQNC theoretical targets. The design’s flexibility and scalability suggest immediate applications in precision sensing, while its optical architecture opens pathways for quantum information and communication technologies. Published in November 2025, the work marks a critical step toward practical, deployable quantum noise suppression in real-world quantum devices.
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Quantum Physics arXiv:2511.08056 (quant-ph) [Submitted on 11 Nov 2025] Title:Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation Authors:Nived Johny, Jonas Junker, Bernd Schulte, Dennis Wilken, Klemens Hammerer, Michèle Heurs View a PDF of the paper titled Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation, by Nived Johny and 5 other authors View PDF HTML (experimental) Abstract:We report the realization of an all-optical, tabletop effective-negative-mass oscillator (ENMO) scheme capable of canceling quantum noise when cascaded with an opto-mechanical sensor susceptible to (quantum) radiation pressure noise. Our coherent quantum noise cancellation (CQNC) scheme offers a broadband cancellation capability with a tunable, wavelength-flexible, and compact system. This is achieved through the implementation of an optical equivalent of an opto-mechanical interaction, facilitated by a down-conversion and a beam-splitting process. The intricate nature of the system and its multiple interacting components made characterizing the interdependent parameters with conventional methods ineffective, leading to the development of an in-situ characterization scheme. The obtained parameters meet the targets for CQNC set in previous studies. With our current realization, we project a broadband quantum noise reduction of 3.6 dB, corresponding to a 77% reduction in quantum back-action noise at the optimal frequency of maximum reduction, indicating the readiness of the ENMO for application. We discuss the prospects for new applications in quantum information and communication using the same platform. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2511.08056 [quant-ph] (or arXiv:2511.08056v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2511.08056 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Jonas Junker [view email] [v1] Tue, 11 Nov 2025 09:57:14 UTC (1,723 KB) Full-text links: Access Paper: View a PDF of the paper titled Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation, by Nived Johny and 5 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-11 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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