Coherent Driving of a Quantum System with Modulated Free-Space Electrons

Coherent Driving of a Quantum System with Modulated Free-Space Electrons | 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 Coherent Driving of a Quantum System with Modulated Free-Space Electrons Matthias Kolb, Thomas Spielauer, Thomas Weigner, Giovanni Boero, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7750602/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Control of quantum systems typically relies on the interaction with electromagnetic radiation. In this study, we experimentally show that the electromagnetic near-field of a spatially modulated free-space electron beam can be used to drive spin systems, demonstrating free-electron-bound-electron resonant interaction. By periodically deflecting the electron beam of a scanning electron microscope in close proximity to a spin-active solid-state sample, and sweeping the deflection frequency across the spin resonance, we directly observe phase coherent coupling between the electron beam's near-field and the two spin states. This method relies only on classically shaping the electron beams transversal correlations and has the potential to enable coherent control of quantum systems with unprecedented, electron microscopic resolution, opening novel possibilities for advanced spectroscopic tools in nanotechnology. Physical sciences/Physics/Quantum physics/Matter waves and particle beams Physical sciences/Physics/Techniques and instrumentation/Microscopy/Scanning electron microscopy Full Text Additional Declarations There is NO Competing Interest. Supplementary Files supplement.pdf Coherent Driving of a Quantum System with Modulated Free-Space Electrons Supplementary Information Cite Share Download PDF Status: Under Review 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-7750602","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Physical Sciences - Article","associatedPublications":[],"authors":[{"id":532755383,"identity":"21c31445-2e79-4c25-8fb4-a929961f2a62","order_by":0,"name":"Matthias Kolb","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDElEQVRIie3RMUvDQBTA8XcEbnoh6y3GTyBcKWRMvsodN7jGTbBgoJAuomuLol+hU1dPHlyWQlfHQsBZEDoVMY0VKiQKTg73Hw6O48c7eAA+3z8tANmcCIzgvL3+Cth4T4BgKQ8I/4nAnrBSHrz0kJPJqqrzPM0AydLZ/VbPq8CtYZRC9FB0kmRp2HgqjS7CUtFsIfWc+KkEZ0C47imJbQjKQEGEksKGLAgTAdwC9JFVvSOX2Se525FoI+DdwnEfeW6nECvCq4YU7RQuWGlB9pJ6cIuy0iU6RVM3HD4ST4S+Njhwqudjev2G24ssQvNU56P4aHZDL+J1k8Yx2e4xX31fgmr35PP5fL6/9gFUk1mfHfvmPwAAAABJRU5ErkJggg==","orcid":"","institution":"Technische Universität Wien - 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