{"id":105233,"date":"2025-08-21T08:54:40","date_gmt":"2025-08-21T14:54:40","guid":{"rendered":"https:\/\/losperiodistas.com.mx\/portal\/?p=105233"},"modified":"2025-08-21T08:54:41","modified_gmt":"2025-08-21T14:54:41","slug":"lo-nunca-visto-un-grupo-de-fisicos-consigue-hacer-retroceder-el-tiempo-el-confidencial","status":"publish","type":"post","link":"https:\/\/losperiodistas.com.mx\/portal\/lo-nunca-visto-un-grupo-de-fisicos-consigue-hacer-retroceder-el-tiempo-el-confidencial\/","title":{"rendered":"Lo nunca visto: un grupo de f\u00edsicos consigue hacer \u00abretroceder el tiempo\u00bb | El Confidencial"},"content":{"rendered":"\n<p class=\"has-pale-cyan-blue-background-color has-background has-medium-font-size\"><strong>AVANCE CU\u00c1NTICO<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">El protocolo desarrollado en Austria permite revertir el estado de una part\u00edcula cu\u00e1ntica y abre nuevas posibilidades para la computaci\u00f3n cu\u00e1ntica<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2025\/08\/f.elconfidencial.com_original_761_bd3_5c0_761bd35c0c9f132eacba4d955a10bb99-1024x768.jpg\" alt=\"\" class=\"wp-image-105234\" srcset=\"https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2025\/08\/f.elconfidencial.com_original_761_bd3_5c0_761bd35c0c9f132eacba4d955a10bb99-1024x768.jpg 1024w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2025\/08\/f.elconfidencial.com_original_761_bd3_5c0_761bd35c0c9f132eacba4d955a10bb99-300x225.jpg 300w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2025\/08\/f.elconfidencial.com_original_761_bd3_5c0_761bd35c0c9f132eacba4d955a10bb99-768x576.jpg 768w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2025\/08\/f.elconfidencial.com_original_761_bd3_5c0_761bd35c0c9f132eacba4d955a10bb99.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Viajar en el tiempo (Fuente: Pexels)<\/figcaption><\/figure>\n\n\n\n<p class=\"has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-8d61437043df97b2244ed950e2cf2554\"><strong>Por\u00a0<a href=\"https:\/\/www.elconfidencial.com\/autores\/silvia-lopez-5869\/\">El Confidencial<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.elconfidencial.com\/tecnologia\/ciencia\/2025-08-21\/humanos-no-fuimos-primeros-visitar-luna-1qrt_4164382\/\">Hasta la NASA lo sabe: los humanos no fuimos los primeros seres vivos que visitamos la Luna<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.elconfidencial.com\/tecnologia\/ciencia\/2025-08-21\/arbol-amazonas-extrana-esfera-1qrt_4154221\/\">Un \u00e1rbol cae en el Amazonas y deja al descubierto siete esferas que no deber\u00edan estar ah\u00ed<\/a>\u200b<\/li>\n<\/ul>\n\n\n\n<p>Un grupo de&nbsp;<strong>cient\u00edficos de la Academia Austriaca de Ciencias<\/strong>&nbsp;ha dise\u00f1ado un protocolo que consigue&nbsp;<strong>hacer retroceder el tiempo en una part\u00edcula cu\u00e1ntica<\/strong>. El logro, que solo es posible en el&nbsp;<strong><a href=\"https:\/\/www.elconfidencial.com\/alma-corazon-vida\/2025-02-14\/fisuca-espanola-como-es-trabajar-acelerador-particulas-mas-grande-munso-bajo-tierra-1qrt_4064625\/\">\u00e1mbito subat\u00f3mico<\/a><\/strong>, se presenta como un paso relevante para el futuro de la&nbsp;<strong>computaci\u00f3n cu\u00e1ntica<\/strong>. La clave de este m\u00e9todo reside en que&nbsp;<strong>permite devolver una part\u00edcula a un estado previo sin necesidad de medirla<\/strong>, algo crucial para no destruir la delicada&nbsp;<strong>superposici\u00f3n cu\u00e1ntica<\/strong>&nbsp;que caracteriza a los c\u00fabits.&nbsp;<\/p>\n\n\n\n<p>En el mundo macrosc\u00f3pico, procesos como&nbsp;<strong>romper un vaso<\/strong>&nbsp;o dejar caer un objeto no pueden revertirse, ya que el tiempo avanza de forma irreversible. No obstante, la&nbsp;<strong>f\u00edsica cu\u00e1ntica<\/strong>&nbsp;funciona bajo leyes distintas y ofrece escenarios donde esa flecha temporal puede alterarse. Para demostrarlo, los investigadores han creado un&nbsp;<strong>\u201cinterruptor cu\u00e1ntico\u201d<\/strong>, un dispositivo que&nbsp;<strong>manipula fotones en&nbsp;<a href=\"https:\/\/www.elconfidencial.com\/espana\/coronavirus\/2020-04-13\/oms-recomendaciones-paises-confinamiento_2546920\/\">condiciones controladas<\/a><\/strong>. De manera ilustrativa, se asemeja a&nbsp;<strong>deshacer una jugada en una partida de ajedrez<\/strong>&nbsp;sin revisar toda la secuencia previa.<\/p>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-4-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/images.ecestaticos.com\/QKzxtAojVmkXV4wVbFGorarlj3g=\/0x0:2272x1515\/1200x900\/filters:fill(white):format(jpg)\/f.elconfidencial.com%2Foriginal%2Ffde%2Fd3a%2F01c%2Ffded3a01ced52e72b112e71edf6c4861.jpg\" alt=\"Foto: Los efectos de las pesadillas van mucho m\u00e1s all\u00e1 de lo imaginado (Pexels\/ Ron Lach)\"\/><\/figure>\n\n\n\n<p>TE PUEDE INTERESAR<a href=\"https:\/\/www.elconfidencial.com\/tecnologia\/ciencia\/2025-08-20\/pesadillas-frecuentes-ciencia-algo-malo-1qrt_4158504\/\">\u00bfTienes pesadillas con frecuencia? La ciencia tiene algo (malo) que contarte<\/a><\/p>\n\n\n\n<p>R. Badillo<\/p>\n<\/div>\n\n\n\n<p>Este avance ha sido descrito como un&nbsp;<strong>\u201cviaje temporal universal\u201d<\/strong>, aplicable a cualquier&nbsp;<strong>sistema cu\u00e1ntico de dos niveles<\/strong>, no limitado \u00fanicamente a los fotones. El procedimiento&nbsp;<strong>interfiere en todas las trayectorias posibles de una part\u00edcula<\/strong>&nbsp;para dirigir su evoluci\u00f3n hacia un estado concreto del pasado. Aunque no guarda relaci\u00f3n con los&nbsp;<strong>viajes en el tiempo de la ciencia ficci\u00f3n<\/strong>, sus aplicaciones pr\u00e1cticas resultan prometedoras. Entre ellas destaca la posibilidad de&nbsp;<strong>corregir errores cu\u00e1nticos<\/strong>, uno de los mayores obst\u00e1culos para construir ordenadores capaces de operar de manera estable.&nbsp;<\/p>\n\n\n\n<p>El investigador&nbsp;<strong>Miguel Navascu\u00e9s<\/strong>, coautor del estudio, reconoce que, desde un punto de vista puramente te\u00f3rico,&nbsp;<strong>el protocolo podr\u00eda extrapolarse a seres humanos<\/strong>. Sin embargo, subraya que en la pr\u00e1ctica este escenario es&nbsp;<strong>inviable<\/strong>, dado que las part\u00edculas de mayor masa plantean&nbsp;<strong>dificultades t\u00e9cnicas insalvables<\/strong>&nbsp;con la tecnolog\u00eda actual. Por ahora, el hallazgo se limita al&nbsp;<strong>laboratorio<\/strong>&nbsp;y a sistemas de escala cu\u00e1ntica, aunque representa un hito: demuestra que, en ese nivel, la noci\u00f3n de un&nbsp;<strong>tiempo lineal e irreversible puede ser desafiada<\/strong>.<\/p>\n\n\n\n<p>Fuente: <a href=\"https:\/\/www.elconfidencial.com\/tecnologia\/ciencia\/2025-08-21\/nunca-visto-fisicos-consigue-retroceder-tiempo-1qrt_4194548\/\">https:\/\/www.elconfidencial.com\/tecnologia\/ciencia\/2025-08-21\/nunca-visto-fisicos-consigue-retroceder-tiempo-1qrt_4194548\/<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AVANCE CU\u00c1NTICO El protocolo desarrollado en Austria permite revertir el estado de una part\u00edcula cu\u00e1ntica y abre nuevas posibilidades para [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":105234,"comment_status":"open","ping_status":"open","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":"","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":[8],"tags":[41042,41040,41041],"class_list":["post-105233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-ambito-subatomico","tag-computacion-cuantica","tag-retrocer-el-tiempo"],"_links":{"self":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/105233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/comments?post=105233"}],"version-history":[{"count":1,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/105233\/revisions"}],"predecessor-version":[{"id":105235,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/105233\/revisions\/105235"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/media\/105234"}],"wp:attachment":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/media?parent=105233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/categories?post=105233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/tags?post=105233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}