--- title: Researchers Improve Superconducting Qubit Coherence... description: Researchers at Brookhaven National Laboratory's C2QA center, led by Princeton professors Nathalie de Leon, Robert Cava, and Andrew Houck, achieved... canonical: https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Researchers Improve Superconducting Qubit Coherence Using Tantalum and Silicon | daily.dev og:description: Researchers at Brookhaven National Laboratory's C2QA center, led by Princeton professors Nathalie de Leon, Robert Cava, and Andrew Houck, achieved... og:url: https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln og:image: https://api.daily.dev/og/posts/ZWMXWVDLn.png og:image:alt: Researchers Improve Superconducting Qubit Coherence Using Tantalum and Silicon og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Researchers Improve Superconducting Qubit Coherence Using Tantalum and Silicon **[The Quantum Insider](https://daily.dev/sources/thequantuminsider)** · 6 min read · 0 upvotes · 0 comments ## Summary Researchers at Brookhaven National Laboratory's C2QA center, led by Princeton professors Nathalie de Leon, Robert Cava, and Andrew Houck, achieved superconducting transmon qubit coherence times of 1.68 milliseconds — roughly 10 times longer than the previous state of the art. The breakthrough came from two materials innovations: using tantalum instead of conventional aluminum/niobium (tantalum forms cleaner oxide interfaces with fewer defects) and switching from sapphire to silicon substrates to further reduce energy loss. Because the design remains compatible with existing quantum processor architectures, companies could adopt it without major rework. Longer coherence times directly reduce error rates, reducing the overhead needed for quantum error correction and bringing fault-tolerant quantum computing closer to reality. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Charles Black Leads C2QA Research on Scalable Quantum Computing](https://daily.dev/posts/charles-black-leads-c2qa-research-on-scalable-quantum-computing-ceykjdtjq) · The Quantum Insider · 0 upvotes · 0 comments - [A solid-state quantum processor based on nuclear spins](https://daily.dev/posts/a-solid-state-quantum-processor-based-on-nuclear-spins-kyjkfoyt0) · Phys.org · 0 upvotes · 0 comments - [Operation of a high-frequency, phase-slip qubit](https://daily.dev/posts/operation-of-a-high-frequency-phase-slip-qubit-t491alzd3) · Nature · 0 upvotes · 0 comments --- Tags: [#science](https://daily.dev/tags/science), [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Researchers Improve Superconducting Qubit Coherence Using Tantalum and Silicon","url":"https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln"},"datePublished":"2026-08-05T12:26:48.266Z","dateModified":"2026-08-05T12:27:09.205Z","description":"Researchers at Brookhaven National Laboratory's C2QA center, led by Princeton professors Nathalie de Leon, Robert Cava, and Andrew Houck, achieved...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2821a8f49f6a7f1469171555f4ee4c5f?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2821a8f49f6a7f1469171555f4ee4c5f?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Quantum Insider","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Quantum Insider","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/7b14a6b34c1b464c9e8a88d9a0dac951","url":"https://daily.dev/sources/thequantuminsider"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/researchers-improve-superconducting-qubit-coherence-using-tantalum-and-silicon-zwmxwvdln","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"science,quantum-computing","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Quantum Insider","item":"https://daily.dev/sources/thequantuminsider"},{"@type":"ListItem","position":3,"name":"Researchers Improve Superconducting Qubit Coherence Using Tantalum and Silicon"}]} ```