{"id":474958,"date":"2024-06-08T21:17:25","date_gmt":"2024-06-08T21:17:25","guid":{"rendered":"https:\/\/kinsta.unitedwithisrael.org\/?p=474958"},"modified":"2024-06-09T00:17:25","modified_gmt":"2024-06-08T21:17:25","slug":"investigadores-desarrollaron-un-nuevo-metamaterial-que-puede-detectar-el-orden-de-las-operaciones-externas","status":"publish","type":"post","link":"https:\/\/kinsta.unitedwithisrael.org\/es\/investigadores-desarrollaron-un-nuevo-metamaterial-que-puede-detectar-el-orden-de-las-operaciones-externas\/","title":{"rendered":"Investigadores desarrollaron un nuevo metamaterial que puede detectar el orden de las operaciones externas"},"content":{"rendered":"

Investigadores de la Universidad de Tel Aviv y el Laboratorio Nacional Los \u00c1lamos han desarrollado un nuevo metamaterial mec\u00e1nico que recuerda el orden de las acciones realizadas en \u00e9l, muy similar a como una computadora sigue una secuencia de instrucciones.<\/strong><\/p>\n

(Comunicado de la portavoz de la Universidad de Tel Aviv)<\/p>\n

A diferencia de los materiales ordinarios que responden del mismo modo a una secuencia de manipulaciones externas independientemente de su orden, el nuevo metamaterial-denominado \u201cChaco\u201d por el sitio arqueol\u00f3gico Ca\u00f1\u00f3n del Chaco, Nuevo M\u00e9xico-exhibe una conducta dependiente de la historia, abriendo as\u00ed un camino a aplicaciones emocionantes en el almacenamiento de memoria, rob\u00f3tica e incluso en computaci\u00f3n mec\u00e1nica.<\/p>\n

La investigaci\u00f3n fue dirigida por Chaviva Sirote-Hatz, Dor Shohat, el Dr. Carl Merrigan, el Prof. Yoav Lahini y el Prof. Yair Shokef, de la Universidad de Tel Aviv y el Dr. Cristiano Nisoli del Laboratorio Nacional Los \u00c1lamos.<\/p>\n

Un metamaterial es una estructura dise\u00f1ada a partir de una construcci\u00f3n de bloques que son mucho m\u00e1s grandes que los \u00e1tomos o las mol\u00e9culas. Las propiedades f\u00edsicas del metamaterial dependen principalmente de la disposici\u00f3n espacial de estos bloques. Estas invesigaci\u00f3n se focaliza en un metamaterial mec\u00e1nico formado por un conjunto de haces flexibles que se doblan con facilidad bajo compresi\u00f3n. A fin de obtener propiedades singulares, los investigadores construyeron un metamaterial con una frustraci\u00f3n innata-a saber, con una disposici\u00f3n geom\u00e9trica de los haces que no permite que todos ellos respondan simult\u00e1neamente a la presi\u00f3n externa del modo que cada haz desear\u00eda.<\/p>\n

\u201cEste material es como un dispositivo de almacenamiento de memoria mec\u00e1nica que puede recordar una secuencia de entradas\u201d, explica Dor Shohat, un estudiante del Doctorado de la Universidad de Tel Aviv, que particip\u00f3 en la investigaci\u00f3n. \u201cCada uno de sus bloques de construcci\u00f3n mec\u00e1nica tiene dos estados estables, igual que un solo bit de memoria\u201d.<\/p>\n

El secreto detr\u00e1s de la memoria de Chaco se halla en su particular dise\u00f1o inspirado por el concepto de frustraci\u00f3n descubierto en los sistemas magn\u00e9ticos, que son conocidos por sus propiedades de memoria. De manera similar a c\u00f3mo la frustraci\u00f3n geom\u00e9trica puede evitar que los imanes alcancen un estado simple y ordenado, los bloques de construcci\u00f3n de Chaco est\u00e1n dispuestos de un modo que impide que se asienten f\u00e1cilmente en una configuraci\u00f3n ordenada y de baja energ\u00eda.<\/p>\n

Esta frustraci\u00f3n controlada crea una multitud de estados posibles, una propiedad que permite al material recordar la secuencia de acciones que ha experimentado.<\/p>\n

\u201cAl dise\u00f1ar cuidadosamente la geometr\u00eda del material, podemos controlar la forma en que responde a las fuerzas externas\u201d, agrega Chaviva Sirote-Katz, otra estudiante de doctorado involucrada en la investigaci\u00f3n. \u201cEsto nos permite crear desorden y conductas complejas en una estructura simple, ordenada\u201d.<\/p>\n

La capacidad de Chaco para reconocer las secuencias de acci\u00f3n se basa en su naturaleza no abeliana, es decir, el orden de las operaciones que importa. Por ejemplo, voltear dos unidades del material en un orden puede conducir a un estado final diferente al voltearlas en el orden inverso. Esta sensibilidad a la historia permiti\u00f3 a los investigadores codificar informaci\u00f3n en la secuencia de acciones y luego recuperarla simplemente observando el estado final del material.<\/p>\n

El estudio, publicado en Nature Communications, conecta eficazmente los \u00e1mbitos del magnetismo y la mec\u00e1nica. Dado que los materiales magn\u00e9ticos presentan una serie de comportamientos ex\u00f3ticos que no suelen darse en los mec\u00e1nicos, la receta del dise\u00f1o de Chaco brinda nuevos principios de dise\u00f1o transportable para materiales mec\u00e1nicos con propiedades y funcionalidades destacadas. El equipo de investigaci\u00f3n sostiene que desarrollar estos principios permitir\u00e1 crear materiales inteligentes con memoria inherente y capacidad para realizar c\u00e1lculos.<\/p>\n

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Investigadores de la Universidad de Tel Aviv y el Laboratorio Nacional Los \u00c1lamos han desarrollado un nuevo metamaterial mec\u00e1nico que recuerda el orden de las acciones realizadas en \u00e9l, muy similar a como una computadora sigue una secuencia de instrucciones.<\/p>\n","protected":false},"author":47,"featured_media":408642,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[204],"tags":[],"class_list":["post-474958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"better_featured_image":{"id":408642,"alt_text":"","caption":"Universidad de Tel Aviv 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