{"id":222901,"date":"2025-10-04T04:26:57","date_gmt":"2025-10-04T09:26:57","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/10\/molecular-coating-cleans-up-noisy-quantum-light"},"modified":"2025-10-04T04:26:57","modified_gmt":"2025-10-04T09:26:57","slug":"molecular-coating-cleans-up-noisy-quantum-light","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/10\/molecular-coating-cleans-up-noisy-quantum-light","title":{"rendered":"Molecular coating cleans up noisy quantum light"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/molecular-coating-cleans-up-noisy-quantum-light3.jpg\"><\/a><\/p>\n<p>Quantum technologies demand perfection: one photon at a time, every time, all with the same energy. Even tiny deviations in the number or energy of photons can derail devices, threatening the performance of quantum computers that someday could make up a quantum internet.<\/p>\n<p>While this level of precision is difficult to achieve, Northwestern University engineers have developed a novel strategy that makes quantum light sources, which dispense single photons, more consistent, precise and reliable.<\/p>\n<p>In a new study, the team coated an atomically thin semiconductor (tungsten diselenide) with a sheetlike organic molecule called PTCDA. The coating transformed the tungsten diselenide\u2019s behavior\u2014turning noisy signals into clean bursts of single photons. Not only did the coating increase the photons\u2019 spectral purity by 87%, but it also shifted the color of photons in a controlled way and lowered the photon activation energy\u2014all without altering the material\u2019s underlying semiconducting properties.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quantum technologies demand perfection: one photon at a time, every time, all with the same energy. Even tiny deviations in the number or energy of photons can derail devices, threatening the performance of quantum computers that someday could make up a quantum internet. While this level of precision is difficult to achieve, Northwestern University engineers [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,418,1617],"tags":[],"class_list":["post-222901","post","type-post","status-publish","format-standard","hentry","category-computing","category-internet","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/222901","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=222901"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/222901\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=222901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=222901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=222901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}