--- title: Pilot reference free continuous variable quantum key... description: Researchers present a pilot-reference-free continuous-variable quantum key distribution (CVQKD) protocol that encodes secret keys on the amplitude of coherent... canonical: https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Pilot reference free continuous variable quantum key distribution with amplitude encoding | daily.dev og:description: Researchers present a pilot-reference-free continuous-variable quantum key distribution (CVQKD) protocol that encodes secret keys on the amplitude of coherent... og:url: https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg og:image: https://api.daily.dev/og/posts/2Zy2gD1Fg.png og:image:alt: Pilot reference free continuous variable quantum key distribution with amplitude encoding 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. # Pilot reference free continuous variable quantum key distribution with amplitude encoding **[Nature](https://daily.dev/sources/nature)** · 3 min read · 0 upvotes · 0 comments ## Summary Researchers present a pilot-reference-free continuous-variable quantum key distribution (CVQKD) protocol that encodes secret keys on the amplitude of coherent states rather than relying on a high-energy pilot signal for phase drift correction. This eliminates pilot-induced crosstalk and simplifies digital signal processing. Security is analyzed under collective attacks, and a proof-of-principle experiment demonstrates operation over both an optical fiber channel and a free-space channel with biaxially oriented polypropylene, even when the signal phase is fully randomized, showing adaptability to optical path fluctuations in complex channels. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Enhanced continuous-variable quantum key distribution protocol via adaptive signal processing](https://daily.dev/posts/enhanced-continuous-variable-quantum-key-distribution-protocol-via-adaptive-signal-processing-215i9jast) · Nature · 0 upvotes · 0 comments - [Record-breaking quantum key distribution transmission distance achieved alongside classical channels](https://daily.dev/posts/record-breaking-quantum-key-distribution-transmission-distance-achieved-alongside-classical-channels-k6p0kkl4t) · Phys.org · 0 upvotes · 0 comments - [Quantum key distribution method tested in urban infrastructure offers secure communications](https://daily.dev/posts/quantum-key-distribution-method-tested-in-urban-infrastructure-offers-secure-communications-dneh27qsh) · Phys.org · 0 upvotes · 0 comments - [Polychromatic continuous-variable quantum communication network enabled by optical frequency combs](https://daily.dev/posts/polychromatic-continuous-variable-quantum-communication-network-enabled-by-optical-frequency-combs-dyxm2vclf) · Nature · 0 upvotes · 0 comments - [Researchers validate measurement-protection quantum key distribution](https://daily.dev/posts/researchers-validate-measurement-protection-quantum-key-distribution-77czss8mn) · Phys.org · 1 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#quantum-computing](https://daily.dev/tags/quantum-computing), [#cryptography](https://daily.dev/tags/cryptography) [View this post on daily.dev](https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg) ```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":"Pilot reference free continuous variable quantum key distribution with amplitude encoding","url":"https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg"},"datePublished":"2026-09-01T07:15:03.679Z","dateModified":"2026-09-01T07:48:30.462Z","description":"Researchers present a pilot-reference-free continuous-variable quantum key distribution (CVQKD) protocol that encodes secret keys on the amplitude of coherent...","image":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","thumbnailUrl":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","isAccessibleForFree":true,"articleSection":"Nature","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":"Nature","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/c263038828ce4ac283ed3ffebfed20c1","url":"https://daily.dev/sources/nature"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/pilot-reference-free-continuous-variable-quantum-key-distribution-with-amplitude-encoding-2zy2gd1fg","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,quantum-computing,cryptography","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Nature","item":"https://daily.dev/sources/nature"},{"@type":"ListItem","position":3,"name":"Pilot reference free continuous variable quantum key distribution with amplitude encoding"}]} ```