Quantum Vector Signal Analyzer

Quantum Vector Signal Analyzer | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Physical Sciences - Article Quantum Vector Signal Analyzer Hao Wu, Grant Mitts, Clayton Ho, Joshua Rabinowitz, Eric Hudson This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3926118/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 18 Feb, 2025 Read the published version in Nature Physics → Version 1 posted You are reading this latest preprint version Abstract A technique that allows a harmonic oscillator to be used as a wideband vector signal analyzer is described and demonstrated using a single trapped 40 ca + ion cooled near its motional ground state. Further, the analyzer is shown to be compatible with both quantum amplification via squeezing and measurement in the Fock basis, allowing performance beyond the standard quantum limit. In addition to providing an attractive platform for quantum sensing of small fields, the technique allows in situ calibration of qubit control lines in systems using quantum harmonic oscillators and transduction of external, non-resonant drives into oscillator motion. This technique is extendable to other quantum harmonic oscillator systems. Physical sciences/Physics/Quantum physics/Quantum metrology Physical sciences/Physics/Atomic and molecular physics/Atomic and molecular interactions with photons Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Published Journal Publication published 18 Feb, 2025 Read the published version in Nature Physics → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3926118","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Physical Sciences - Article","associatedPublications":[],"authors":[{"id":274293205,"identity":"479619b7-6874-4f62-9bc4-65a4640071d4","order_by":0,"name":"Hao Wu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+ElEQVRIiWNgGAWjYBACAwhlA2YcALPZQQQbQS1pSFqYidNyGMYgQos5++EDzLxt5/PMJdIfHvjxhyGxv5n5AcOHssM4tVj2pCUAtdwutpyRY3Cwt40hccZhNgPGGedwazE4kGPAnNt2O3HDjRyGw4wNDIkbmBkMgIbg0XL+DUjLOaCW9AeHGf6AtLB/YP6LT8sNsC0HgFoSDA4DfQ3UwmPAzIhXy7OEw3/OJRcbnHkD8ouE8YzDPAUHe86l43FY8sGHM8rs8gyOpz/+8OOPjWx/e/vGBz/KrHFqAYEDQJzAIJAAYkvARQiCBAZ+otSNglEwCkbBSAQATORcKFedR2kAAAAASUVORK5CYII=","orcid":"","institution":"University of California - Los Angeles","correspondingAuthor":true,"prefix":"","firstName":"Hao","middleName":"","lastName":"Wu","suffix":""},{"id":274293206,"identity":"7145d3e8-8ec4-4482-9a47-0a388e6a0d9f","order_by":1,"name":"Grant Mitts","email":"","orcid":"","institution":"University of California - Los Angeles","correspondingAuthor":false,"prefix":"","firstName":"Grant","middleName":"","lastName":"Mitts","suffix":""},{"id":274293207,"identity":"7de9909e-27be-4538-91ee-59244bd734e2","order_by":2,"name":"Clayton Ho","email":"","orcid":"","institution":"University of California - Los Angeles","correspondingAuthor":false,"prefix":"","firstName":"Clayton","middleName":"","lastName":"Ho","suffix":""},{"id":274293208,"identity":"af67a631-97e5-4ea3-a7d6-75a2cb8185a1","order_by":3,"name":"Joshua Rabinowitz","email":"","orcid":"","institution":"University of California - Los Angeles","correspondingAuthor":false,"prefix":"","firstName":"Joshua","middleName":"","lastName":"Rabinowitz","suffix":""},{"id":274293209,"identity":"667ceba5-77b4-4eeb-b8c7-a9753df00ec8","order_by":4,"name":"Eric Hudson","email":"","orcid":"","institution":"University of California - Los Angeles","correspondingAuthor":false,"prefix":"","firstName":"Eric","middleName":"","lastName":"Hudson","suffix":""}],"badges":[],"createdAt":"2024-02-04 03:50:12","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3926118/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3926118/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1038/s41567-024-02753-0","type":"published","date":"2025-02-18T05:00:00+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":76639172,"identity":"54c7d112-6bd7-4b5e-a89b-176ca5b5c476","added_by":"auto","created_at":"2025-02-19 08:06:28","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3208662,"visible":true,"origin":"","legend":"Article File","description":"","filename":"IonTrapSpectrumAnalyzer.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3926118/v1_covered_b787532a-081d-4403-bc4e-4beddae518ed.pdf"}],"financialInterests":"There is \u003cb\u003eNO\u003c/b\u003e Competing Interest.","formattedTitle":"Quantum Vector Signal Analyzer","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"nature-portfolio","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"","title":"Nature Portfolio","twitterHandle":"","acdcEnabled":false,"dfaEnabled":false,"editorialSystem":"ejp","reportingPortfolio":"","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-3926118/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3926118/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eA technique that allows a harmonic oscillator to be used as a wideband vector signal analyzer is described and demonstrated using a single trapped \u003csup\u003e40\u003c/sup\u003eca\u003csup\u003e+\u003c/sup\u003e ion cooled near its motional ground state. 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