{"id":114400,"date":"2020-10-14T09:25:35","date_gmt":"2020-10-14T16:25:35","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2020\/10\/ground-state-cooling-of-a-trapped-ion-using-long-wavelength-radiation"},"modified":"2020-10-14T09:25:35","modified_gmt":"2020-10-14T16:25:35","slug":"ground-state-cooling-of-a-trapped-ion-using-long-wavelength-radiation","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2020\/10\/ground-state-cooling-of-a-trapped-ion-using-long-wavelength-radiation","title":{"rendered":"Ground-State Cooling of a Trapped Ion Using Long-Wavelength Radiation"},"content":{"rendered":"<p style=\"padding-right: 20px\"><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/ground-state-cooling-of-a-trapped-ion-using-long-wavelength-radiation.jpg\"><\/a><\/p>\n<p>Freeze laser.<\/p>\n<hr>\n<p>We demonstrate ground-state cooling of a trapped ion using radio-frequency (rf) radiation. This is a powerful tool for the implementation of quantum operations, where rf or microwave radiation instead of lasers is used for motional quantum state engineering. We measure a mean phonon number of $\\overline{n}=0.13$ after sideband cooling, corresponding to a ground-state occupation probability of 88%. After preparing in the vibrational ground state, we demonstrate motional state engineering by driving Rabi oscillations between the $|n=0\u27e9$ and $|n=1\u27e9$ Fock states. We also use the ability to ground-state cool to accurately measure the motional heating rate and report a reduction by almost 2 orders of magnitude compared with our previously measured result, which we attribute to carefully eliminating sources of electrical noise in the system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Freeze laser. We demonstrate ground-state cooling of a trapped ion using radio-frequency (rf) radiation. This is a powerful tool for the implementation of quantum operations, where rf or microwave radiation instead of lasers is used for motional quantum state engineering. We measure a mean phonon number of $\\overline{n}=0.13$ after sideband cooling, corresponding to a ground-state [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,1617],"tags":[],"class_list":["post-114400","post","type-post","status-publish","format-standard","hentry","category-engineering","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/114400","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\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=114400"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/114400\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=114400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=114400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=114400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}