{"id":245657,"date":"2026-10-19T22:54:07","date_gmt":"2026-10-20T03:54:07","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/10\/scientists-redetermine-a-key-strontium-frequency-with-50-times-better-precision-for-quantum-technologies"},"modified":"2026-10-19T22:54:07","modified_gmt":"2026-10-20T03:54:07","slug":"scientists-redetermine-a-key-strontium-frequency-with-50-times-better-precision-for-quantum-technologies","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/10\/scientists-redetermine-a-key-strontium-frequency-with-50-times-better-precision-for-quantum-technologies","title":{"rendered":"Scientists redetermine a key strontium frequency with 50 times better precision for quantum technologies"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/scientists-redetermine-a-key-strontium-frequency-with-50-times-better-precision-for-quantum-technologies2.jpg\"><\/a><\/p>\n<p>The Korea Research Institute of Standards and Science (KRISS) has remeasured a key transition frequency of the strontium (Sr) atom for the first time in 88 years, since 1938, using a photonic grating chip. It has established a new absolute frequency value with a measurement uncertainty reduced by more than 50 times. By providing an accurate reference value for next-generation quantum technologies, this achievement is expected to contribute to the precise control and miniaturization of quantum devices, including atomic clocks and neutral-atom quantum computers. The work is <a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1681-7575\/ae8bb5\" target=\"_blank\">published<\/a> in the journal Metrologia.<\/p>\n<p>Strontium is an atom widely used in precision quantum technologies such as <a href=\"https:\/\/phys.org\/news\/2024-07-optical-lattice-clock-based-strontium.html?utm_source=embeddings&utm_medium=related&utm_campaign=internal\" rel=\"related\">optical lattice clocks<\/a> and quantum sensors. To use strontium in these technologies, fast-moving atoms must be slowed down and trapped with precisely tuned lasers. This requires knowing the exact resonant frequency of the laser light for the atomic transition.<\/p>\n<p>However, the previous frequency value was obtained in 1938 by comparing the solar spectrum with the arc light of strontium, and its uncertainty was too large for today\u2019s precise laser frequency settings. As a result, researchers have had to observe the atoms\u2019 response directly and adjust the laser frequency as needed, much like turning the dial of an analog radio to tune in to a station.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Korea Research Institute of Standards and Science (KRISS) has remeasured a key transition frequency of the strontium (Sr) atom for the first time in 88 years, since 1938, using a photonic grating chip. It has established a new absolute frequency value with a measurement uncertainty reduced by more than 50 times. By providing an [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,48,1617],"tags":[],"class_list":["post-245657","post","type-post","status-publish","format-standard","hentry","category-computing","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245657","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=245657"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245657\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=245657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=245657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=245657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}