{"id":106510,"date":"2025-04-23T16:28:07","date_gmt":"2025-04-23T15:28:07","guid":{"rendered":"https:\/\/helloproject.es\/vigilancia\/transmiten-mensajes-cuanticos-en-una-red-comercial-de-fibra-optica\/"},"modified":"2025-04-23T16:28:07","modified_gmt":"2025-04-23T15:28:07","slug":"transmiten-mensajes-cuanticos-en-una-red-comercial-de-fibra-optica","status":"publish","type":"post","link":"https:\/\/helloproject.es\/vigilancia\/transmiten-mensajes-cuanticos-en-una-red-comercial-de-fibra-optica\/","title":{"rendered":"Transmiten mensajes cu\u00e1nticos en una red comercial de fibra \u00f3ptica"},"content":{"rendered":"<p>En un experimento pionero llevado a cabo en Alemania, un equipo liderado por\u00a0Mirko Pittaluga de Toshiba Europe ha demostrado la posibilidad de realizar comunicaciones cu\u00e1nticas coherentes en una red de telecomunicaciones comercial ya desplegada.<\/p>\n<p>El estudio, publicado en la revista Nature, informa sobre la transmisi\u00f3n de mensajes cu\u00e1nticos a trav\u00e9s de una red de 254 km que conecta tres centros de datos entre Frankfurt, Kehl y Kirchfeld.<\/p>\n<p>El sistema implementado utiliza un protocolo avanzado de distribuci\u00f3n cu\u00e1ntica de claves (QKD, por sus siglas en ingl\u00e9s) denominado twin-field QKD, basado en la coherencia \u00f3ptica, lo que permite duplicar la distancia de comunicaci\u00f3n en comparaci\u00f3n con m\u00e9todos tradicionales.\u00a0<\/p>\n<p>Lograron mantener la coherencia entre las se\u00f1ales \u00f3pticas transmitidas desde los extremos de la red (llamados Alice y Bob) hasta un nodo central receptor (Charlie)<\/p>\n<p>A diferencia de enfoques anteriores que requer\u00edan equipos sofisticados como refrigeradores criog\u00e9nicos, esta soluci\u00f3n se basa en detectores de fotones de avalancha (APDs), m\u00e1s pr\u00e1cticos y econ\u00f3micos.<\/p>\n<p>Mediante t\u00e9cnicas innovadoras de estabilizaci\u00f3n de fase y sincronizaci\u00f3n de frecuencia entre nodos, los investigadores lograron mantener la coherencia entre las se\u00f1ales \u00f3pticas transmitidas desde los extremos de la red (llamados Alice y Bob) hasta un nodo central receptor (Charlie).<\/p>\n<p>Este dise\u00f1o en estrella facilita la escalabilidad del sistema, lo que podr\u00eda permitir el desarrollo de redes cu\u00e1nticas m\u00e1s grandes en el futuro, indican los autores.<\/p>\n<p><a><\/a><\/p>\n<h2>Operaci\u00f3n ininterrumpida de 7,5 horas<\/h2>\n<p>Durante la operaci\u00f3n ininterrumpida de 7,5 horas, el sistema alcanz\u00f3 una tasa de generaci\u00f3n de clave secreta (SKR) de 110 bits por segundo, con una visibilidad de interferencia superior al 97 %, un indicador clave del buen mantenimiento de la coherencia. Adem\u00e1s, el sistema mostr\u00f3 una estabilidad de polarizaci\u00f3n notablemente mejor en condiciones reales que en laboratorio, gracias al uso de fibras \u00f3pticas subterr\u00e1neas.<\/p>\n<p>Se abren v\u00edas para el desarrollo de repetidores cu\u00e1nticos, redes de sensores y computaci\u00f3n cu\u00e1ntica distribuida, avanzando hacia una internet cu\u00e1ntica pr\u00e1ctica.<\/p>\n<p>Este logro no solo duplica la distancia alcanzable con QKD en entornos reales sin refrigeraci\u00f3n criog\u00e9nica, sino que tambi\u00e9n supera l\u00edmites te\u00f3ricos para enlaces punto a punto con detectores similares. Seg\u00fan el equipo de\u00a0Pittaluga, estos resultados acercan a la realidad tecnolog\u00edas como repetidores cu\u00e1nticos, redes de sensores cu\u00e1nticos y computaci\u00f3n cu\u00e1ntica distribuida, consolidando un paso m\u00e1s hacia la futura internet cu\u00e1ntica pr\u00e1ctica.<\/p>\n<p>Referencia:<\/p>\n<p>Mirko Pittaluga et al. \u00abLong-distance coherent quantum communications in deployed telecom networks\u00bb. <a href=\"https:\/\/www.nature.com\/articles\/s41586-025-08801-w\" target=\"_blank\">Nature<\/a> (2025).\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>En un experimento pionero llevado a cabo en Alemania, un equipo liderado por\u00a0Mirko Pittaluga de Toshiba Europe ha demostrado la posibilidad de realizar comunicaciones cu\u00e1nticas coherentes en una red de telecomunicaciones comercial ya desplegada. El estudio, publicado en la revista Nature, informa sobre la transmisi\u00f3n de mensajes cu\u00e1nticos a trav\u00e9s de una red de 254 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-106510","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.9 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Transmiten mensajes cu\u00e1nticos en una red comercial de fibra \u00f3ptica - bip4ex<\/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:\/\/helloproject.es\/vigilancia\/transmiten-mensajes-cuanticos-en-una-red-comercial-de-fibra-optica\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Transmiten mensajes cu\u00e1nticos en una red comercial de fibra \u00f3ptica\" \/>\n<meta property=\"og:description\" content=\"En un experimento pionero llevado a cabo en Alemania, un equipo liderado por\u00a0Mirko Pittaluga de Toshiba Europe ha demostrado la posibilidad de realizar comunicaciones cu\u00e1nticas coherentes en una red de telecomunicaciones comercial ya desplegada. 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