Quantum sensor’s ability for multi-parameter estimation in joint quantum thermometry and magnetometry

Quantum sensor’s ability for multi-parameter estimation in joint quantum thermometry and magnetometry | 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 Article Quantum sensor’s ability for multi-parameter estimation in joint quantum thermometry and magnetometry Seyed Mohammad Hosseiny, Milad Norouzi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7240932/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Quantum sensors can enable the simultaneous and precise measurement of multiple physical parameters, facilitating the development of dual-sensing techniques. In this paper, we report on the simultaneous multi-parameter quantum sensing of temperature and magnetic field based on a quantum sensor consisting of a two-qubit Heisenberg XYZ chain, which enables joint quantum thermometry and magnetometry. Qubits interact via ferromagnetic and antiferromagnetic couplings, and are in thermal equilibrium with a heat bath in the presence of an external magnetic field. Specifically, the sensor’s response to perturbations, like temperature and magnetic field changes, is analyzed through quantum Fisher information (QFI), providing a measure of the sensing precision. We investigate the effects of different types of inter-qubit couplings and external magnetic fields on the accuracy of multi-parameter estimation. Our results demonstrate that simultaneous multi-parameter estimation improves the speed of information extraction and processing, accuracy, and sensitivity of our quantum sensor. This work provides a promising avenue for developing high-performance multiparameter quantum sensors with potential applications in various fields, including materials science, biomedicine, environmental monitoring, aerospace, industrial production, and other fields. Physical sciences/Materials science Physical sciences/Physics Quantum sensing multi-parameter estimation quantum sensor thermometry Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted 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. 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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-7240932","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":523688708,"identity":"93b2a75f-5d68-457a-88ac-562aa3a1223a","order_by":0,"name":"Seyed Mohammad Hosseiny","email":"data:image/png;base64,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","orcid":"","institution":"Vali-e-Asr University of Rafsanjan","correspondingAuthor":true,"prefix":"","firstName":"Seyed","middleName":"Mohammad","lastName":"Hosseiny","suffix":""},{"id":523688709,"identity":"995b9cec-290e-4091-aed7-ed3658ea1626","order_by":1,"name":"Milad Norouzi","email":"","orcid":"","institution":"Vali-e-Asr University of Rafsanjan","correspondingAuthor":false,"prefix":"","firstName":"Milad","middleName":"","lastName":"Norouzi","suffix":""}],"badges":[],"createdAt":"2025-07-29 08:38:15","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7240932/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7240932/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":92705047,"identity":"98857ba2-eb7a-473c-83a7-98607b868814","added_by":"auto","created_at":"2025-10-03 09:34:31","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3686060,"visible":true,"origin":"","legend":"","description":"","filename":"document.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7240932/v1_covered_66098bad-5b8f-4827-829a-66c3c8ae9bf9.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Quantum sensor’s ability for multi-parameter estimation in joint quantum thermometry and magnetometry","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Quantum sensing, multi-parameter estimation, quantum sensor, thermometry","lastPublishedDoi":"10.21203/rs.3.rs-7240932/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7240932/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Quantum sensors can enable the simultaneous and precise measurement of multiple physical parameters, facilitating the development of dual-sensing techniques. 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