{"id":1256,"date":"2026-05-20T03:33:05","date_gmt":"2026-05-20T03:33:05","guid":{"rendered":"https:\/\/sites.rutgers.edu\/chakram-lab\/?p=1256"},"modified":"2026-05-29T03:42:02","modified_gmt":"2026-05-29T03:42:02","slug":"universal-jaynes-cummings-control-paper-on-arxiv","status":"publish","type":"post","link":"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/","title":{"rendered":"Universal Jaynes\u2013Cummings Control paper on arXiv!"},"content":{"rendered":"<div class=\"flex-1 flex flex-col px-4 max-w-3xl mx-auto w-full pt-1\">\n<div>\n<div data-test-render-count=\"1\">\n<div class=\"group\">\n<div class=\"group relative relative pb-3\" data-is-streaming=\"false\">\n<div class=\"font-claude-response relative leading-[1.65rem] [&amp;_pre&gt;div]:bg-bg-000\/50 [&amp;_pre&gt;div]:border-0.5 [&amp;_pre&gt;div]:border-border-400 [&amp;_.ignore-pre-bg&gt;div]:bg-transparent [&amp;_.standard-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.standard-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8 [&amp;_.progressive-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.progressive-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8\">\n<div>\n<div class=\"standard-markdown grid-cols-1 grid [&amp;_&gt;_*]:min-w-0 gap-3 standard-markdown\">\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">We are excited to share our new paper, &#8220;Universal Jaynes\u2013Cummings Control of an Oscillator,&#8221; now available on arXiv. Led by Jordan Huang, this work develops and experimentally demonstrates universal oscillator control using the Jaynes\u2013Cummings interaction as the native control primitive. We introduce efficient decompositions of arbitrary qudit unitaries into sequences of JC interactions and qubit rotations, and implement them experimentally, achieving a mean post-selected process fidelity of 96% for a universal single-qutrit gate set, along with ququart and ququint shift gates.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">The protocol has several key advantages. By constraining the dynamics to a closed computational subspace, the gate set is leakage-protected by construction, suppressing errors from higher Fock states and simplifying error modeling. The encoding also makes ancilla relaxation errors detectable by postselection, allowing them to be heralded at the end of any gate sequence. We find that the circuit depth for a d-dimensional qudit unitary scales as d\u00b2, with remarkably similar depths for Clifford gates, non-Clifford gates, and Haar-random unitaries. The gate time scales more favorably as d^(3\/2), due to the bosonic enhancement of the JC interaction rate \u2014 each JC layer is engineered to implement a 2\u03c0 rotation at the cutoff photon number, where the \u221an enhancement of the interaction rate provides a \u221ad speedup. Finally, we find that the dispersive shift, rather than degrading performance, serves as a compilation resource that reduces circuit when sideband drive detuning is added as a control knob.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><a class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/arxiv.org\/abs\/2605.18658\">arXiv:2605.18658<\/a><\/p>\n<hr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\" \/>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"flex justify-start\" role=\"group\" aria-label=\"Message actions\">\n<div class=\"text-text-300\">\n<div class=\"text-text-300 flex items-stretch justify-between\">\n<div class=\"w-fit\" data-state=\"closed\"><\/div>\n<div class=\"w-fit\" data-state=\"closed\"><\/div>\n<div class=\"w-fit\" data-state=\"closed\"><\/div>\n<div class=\"w-fit\" data-state=\"closed\"><\/div>\n<div class=\"flex items-center\">\n<div class=\"w-fit\" data-state=\"closed\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"h-px w-full pointer-events-none\" aria-hidden=\"true\"><\/div>\n<div>\n<div class=\"ml-1 flex items-center transition-transform duration-300 ease-out mt-6\">\n<div class=\"p-1 -translate-x-px\">\n<div aria-hidden=\"true\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"h-12\"><\/div>\n<div class=\"print:hidden\" aria-hidden=\"true\"><\/div>\n<\/div>\n<div class=\"sticky bottom-0 mx-auto w-full pt-6 print:hidden z-[5]\" data-chat-input-container=\"true\">\n<div>\n<fieldset class=\"flex w-full min-w-0 flex-col\">\n<div class=\"px-2 md:px-0\" data-alert-band-wrapper=\"true\">\n<div role=\"status\" aria-live=\"polite\"><\/div>\n<\/div>\n<div class=\"relative\"><\/div>\n<\/fieldset>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>We are excited to share our new paper, &#8220;Universal Jaynes\u2013Cummings Control of an Oscillator,&#8221; now available on arXiv. Led by Jordan Huang, this work develops and experimentally demonstrates universal oscillator &hellip; <a href=\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\" class=\"\">Read More<\/a><\/p>\n","protected":false},"author":1354,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1256","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Universal Jaynes\u2013Cummings Control paper on arXiv! - Superconducting Quantum Systems<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Universal Jaynes\u2013Cummings Control paper on arXiv! - Superconducting Quantum Systems\" \/>\n<meta property=\"og:description\" content=\"We are excited to share our new paper, &#8220;Universal Jaynes\u2013Cummings Control of an Oscillator,&#8221; now available on arXiv. Led by Jordan Huang, this work develops and experimentally demonstrates universal oscillator &hellip; Read More\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\" \/>\n<meta property=\"og:site_name\" content=\"Superconducting Quantum Systems\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-20T03:33:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-29T03:42:02+00:00\" \/>\n<meta name=\"author\" content=\"Vatsan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vatsan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\",\"url\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\",\"name\":\"Universal Jaynes\u2013Cummings Control paper on arXiv! - Superconducting Quantum Systems\",\"isPartOf\":{\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/#website\"},\"datePublished\":\"2026-05-20T03:33:05+00:00\",\"dateModified\":\"2026-05-29T03:42:02+00:00\",\"author\":{\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/#\/schema\/person\/cc492e5dda8198d5fe1bb42f1f2c1e83\"},\"breadcrumb\":{\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Universal Jaynes\u2013Cummings Control paper on arXiv!\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/#website\",\"url\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/\",\"name\":\"Superconducting Quantum Systems\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/#\/schema\/person\/cc492e5dda8198d5fe1bb42f1f2c1e83\",\"name\":\"Vatsan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/efae014bd4c591b945ee977fc37b0fa7?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/efae014bd4c591b945ee977fc37b0fa7?s=96&d=mm&r=g\",\"caption\":\"Vatsan\"},\"url\":\"https:\/\/sites.rutgers.edu\/chakram-lab\/author\/sc2197\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Universal Jaynes\u2013Cummings Control paper on arXiv! - Superconducting Quantum Systems","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sites.rutgers.edu\/chakram-lab\/universal-jaynes-cummings-control-paper-on-arxiv\/","og_locale":"en_US","og_type":"article","og_title":"Universal Jaynes\u2013Cummings Control paper on arXiv! - Superconducting Quantum Systems","og_description":"We are excited to share our new paper, &#8220;Universal Jaynes\u2013Cummings Control of an Oscillator,&#8221; now available on arXiv. 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