--- title: A New Route to Fault-Tolerant Quantum Computers | daily.dev description: ETH Zurich researchers have developed a technique using a single trapped ion as a high-sensitivity 3D probe to map electric and magnetic fields near quantum... canonical: https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A New Route to Fault-Tolerant Quantum Computers | daily.dev og:description: ETH Zurich researchers have developed a technique using a single trapped ion as a high-sensitivity 3D probe to map electric and magnetic fields near quantum... og:url: https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor og:image: https://api.daily.dev/og/posts/jBRNMbtor.png og:image:alt: A New Route to Fault-Tolerant Quantum Computers 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. # A New Route to Fault-Tolerant Quantum Computers **[Embedded.com](https://daily.dev/sources/embedded-com)** · 8 min read · 0 upvotes · 0 comments ## Summary ETH Zurich researchers have developed a technique using a single trapped ion as a high-sensitivity 3D probe to map electric and magnetic fields near quantum chip surfaces. Built on a Penning trap architecture, the system can detect electric fields as low as 10 nV/m within one second of measurement time, scanning areas 50–450 micrometers above the chip. This diagnostic tool helps identify sources of electromagnetic noise — such as surface contamination, fabrication defects, and material interfaces — that cause qubit decoherence. While developed for trapped-ion systems, the methodology applies broadly to superconducting qubits, spin qubits, and quantum sensors, offering a pathway to lower-noise quantum chips and more scalable, fault-tolerant quantum hardware. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Single Ion Detector Could Lead to Improvements in Quantum Computers And Sensors](https://daily.dev/posts/single-ion-detector-could-lead-to-improvements-in-quantum-computers-and-sensors-xawxopt3u) · The Quantum Insider · 0 upvotes · 0 comments - [Physicists unveil system to solve long-standing barrier to new generation of supercomputers](https://daily.dev/posts/physicists-unveil-system-to-solve-long-standing-barrier-to-new-generation-of-supercomputers-3xf6fb6i5) · Phys.org · 0 upvotes · 0 comments - [Magnetic 'sweet spots' enable optimal operation of hole spin qubits](https://daily.dev/posts/magnetic-sweet-spots-enable-optimal-operation-of-hole-spin-qubits-ovzogppu9) · Phys.org · 0 upvotes · 0 comments - [Quantum Sensor Startup Seeks Flaws in 3D Chips](https://daily.dev/posts/quantum-sensor-startup-seeks-flaws-in-3d-chips-dngdilqjt) · IEEE Spectrum · 0 upvotes · 0 comments - [Why 2D Trapped-Ion Quantum Computers Could Be Easier to Scale Than 1D Architectures](https://daily.dev/posts/why-2d-trapped-ion-quantum-computers-could-be-easier-to-scale-than-1d-architectures-ecesjub0z) · freeCodeCamp · 0 upvotes · 0 comments --- Tags: [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor) ```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":"A New Route to Fault-Tolerant Quantum Computers","url":"https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor"},"datePublished":"2026-07-28T15:06:20.255Z","dateModified":"2026-07-28T15:13:21.691Z","description":"ETH Zurich researchers have developed a technique using a single trapped ion as a high-sensitivity 3D probe to map electric and magnetic fields near quantum...","image":"https://media.daily.dev/image/upload/s--qPvKM23u--/f_auto/v1722860399/public/Placeholder%2009","thumbnailUrl":"https://media.daily.dev/image/upload/s--qPvKM23u--/f_auto/v1722860399/public/Placeholder%2009","isAccessibleForFree":true,"articleSection":"Embedded.com","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":"Embedded.com","logo":"https://media.daily.dev/image/upload/s--oPypG_tz--/f_auto,q_auto/v1780213576/logos/embedded-com?_a=BAMAMiWQ0","url":"https://daily.dev/sources/embedded-com"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/a-new-route-to-fault-tolerant-quantum-computers-jbrnmbtor","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"quantum-computing","timeRequired":"PT8M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Embedded.com","item":"https://daily.dev/sources/embedded-com"},{"@type":"ListItem","position":3,"name":"A New Route to Fault-Tolerant Quantum Computers"}]} ```