Cavity QED beyond the Jaynes-Cummings model

Cavity QED beyond the Jaynes-Cummings model | 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 Research Article Cavity QED beyond the Jaynes-Cummings model Abeer Al Ghamdi, Gin Jose, Almut Beige This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8475752/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 4 You are reading this latest preprint version Abstract As atom-cavity systems are becoming more sophisticated, the limitations of the Jaynes-Cummings model are becoming more apparent. In this paper, we therefore take a more dynamical approach to the modelling of atom-cavity systems and do not reduce the electromagnetic field inside the resonator to a single mode. Our approach shows that the decay rate Gamma_cav of an emitter inside a subwavelength cavity with metallic mirrors can be much larger than its free space decay rate Gamma_free due to constructive interference effects of the emitted light. In general, however, we find that Gamma_cav = Gamma_free to a very good approximation which might explain why many atom-cavity experiments have not been able to operate in the so-called strong coupling regime. Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 31 Dec, 2025 Editor assigned by journal 30 Dec, 2025 Submission checks completed at journal 30 Dec, 2025 First submitted to journal 29 Dec, 2025 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-8475752","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":567705380,"identity":"24c38c6a-aa65-4bf3-bbca-7f9c614b1837","order_by":0,"name":"Abeer Al Ghamdi","email":"","orcid":"","institution":"King Saud University","correspondingAuthor":false,"prefix":"","firstName":"Abeer","middleName":"Al","lastName":"Ghamdi","suffix":""},{"id":567705382,"identity":"cc2126ae-ec7a-49cf-947b-5bcea5d22336","order_by":1,"name":"Gin Jose","email":"","orcid":"","institution":"University of Leeds","correspondingAuthor":false,"prefix":"","firstName":"Gin","middleName":"","lastName":"Jose","suffix":""},{"id":567705383,"identity":"9af0a3b4-9240-4f3a-9f8a-1e8a00b55076","order_by":2,"name":"Almut Beige","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA3UlEQVRIie2RsQrCMBCGTwp1ie16IthXaCnUQfFZEgLporvgYEHIVH2mlII+g5suruIiQQQNCI5p3QTzcYGf4z7uIAAOx09CACjAMDAR3x2/nZL63ykGJlsrYdGrjsf7JJfddXXQMI0ABbUqqAIes62YS7LjYwI8KVAo+xpFMmRlPZc4ywYAHgXMC6sRKTLSrHzmfnS59TWsmpXYbAGqFfWRmILaKA2HJXXAkRU8kUSkYxLvTThTqzLcb6qrfkyjsFufDnqxNEHEVgU88zryc2eLj3zzaDfmcDgcf8oL7qw9SEZOmtQAAAAASUVORK5CYII=","orcid":"","institution":"University of Leeds","correspondingAuthor":true,"prefix":"","firstName":"Almut","middleName":"","lastName":"Beige","suffix":""}],"badges":[],"createdAt":"2025-12-29 20:38:15","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8475752/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8475752/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":100796531,"identity":"2708983b-9b6f-448d-849a-9f5a27866d8e","added_by":"auto","created_at":"2026-01-21 13:43:57","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":768094,"visible":true,"origin":"","legend":"","description":"","filename":"Archive.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8475752/v1_covered_67501626-da88-425e-9659-c57fd82af236.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Cavity QED beyond the Jaynes-Cummings model","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"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":"optical-and-quantum-electronics","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"oqel","sideBox":"Learn more about [Optical and Quantum Electronics](https://www.springer.com/journal/11082)","snPcode":"11082","submissionUrl":"https://submission.nature.com/new-submission/11082/3","title":"Optical and Quantum Electronics","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-8475752/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8475752/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"As atom-cavity systems are becoming more sophisticated, the limitations of the Jaynes-Cummings model are becoming more apparent. 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