{"id":255856,"date":"2025-12-29T09:50:09","date_gmt":"2025-12-29T09:50:09","guid":{"rendered":"https:\/\/www.europesays.com\/ie\/255856\/"},"modified":"2025-12-29T09:50:09","modified_gmt":"2025-12-29T09:50:09","slug":"innovative-techniques-enable-italys-first-imaging-of-individual-trapped-atoms","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ie\/255856\/","title":{"rendered":"Innovative Techniques Enable Italy\u2019s First Imaging of Individual Trapped Atoms"},"content":{"rendered":"<p><strong>Insider Brief<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li>Researchers at the ArQuS Laboratory have demonstrated Italy\u2019s first imaging of individual trapped cold atoms, achieving microsecond-scale detection of single ytterbium atoms while retaining more than 99.5% of them in optical traps.<\/li>\n<li>The technique enables precise counting of multiple atoms within a single optical tweezer\u2014rather than simple zero-or-one detection\u2014supporting the scaling of neutral-atom quantum computers, improved atomic clocks, and advanced quantum simulators.<\/li>\n<li>The work also reports the first single-atom imaging of fermionic ytterbium-173, opening a path to qudit-based quantum circuits, and was published in Physical Review Letters and Quantum Science and Technology.<\/li>\n<li>Image: The researchers of the ArQuS Lab (University of Trieste)<\/li>\n<\/ul>\n<p>PRESS RELEASE \u2014 Researchers at the ArQuS Laboratory of the University of Trieste (Italy) and the National Institute of Optics of the Italian National Research Council (CNR-INO) have achieved the first imaging of individual trapped cold atoms in Italy, i<strong>ntroducing techniques that push single-atom detection into new performance regimes.\u00a0<\/strong>By combining intense, microsecond-scale fluorescence pulses with fast re-cooling, the team demonstrated record-speed, low-loss imaging of individual ytterbium atoms\u2014capturing clear single-atom signals in just a few microseconds while keeping more than 99.5% of the atoms trapped and immediately reusable.<\/p>\n<p>This approach allows researchers to distinguish multiple atoms within a single optical tweezer without significant blurring, enabling precise onsite atom counting rather than the binary \u201czero-or-one\u201d detection typical of existing methods. This capability is key for scaling neutral-atom quantum computers, advancing next-generation atomic clocks, and enhancing quantum simulators that probe complex many-body physics.<\/p>\n<p>\u201cTo photograph extremely faint light sources\u2014whether distant astronomical bodies or individual atoms\u2014long exposures are typically required, to collect enough photons to isolate them out from background noise,\u201d explains\u00a0<strong>Francesco Scazza<\/strong>, associate professor at the University of Trieste and head of the ArQuS Laboratory. \u201cIn our work we adopted a different strategy, analogous to using a camera flash: by illuminating the atoms intensely for a very short time, we can gather enough signal to distinguish each atom clearly while drastically reducing the imaging duration.\u201d<\/p>\n<p><a href=\"https:\/\/thequantuminsider.com\/data\/\" onclick=\"_gs(&#039;event&#039;, &#039;DATA IN CONTENT NEW&#039;)\" class=\"responsive-image\" rel=\"nofollow noopener\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/www.europesays.com\/ie\/wp-content\/uploads\/2025\/10\/Website-Banner-Quantum-2.gif\" alt=\"Responsive Image\"\/><\/a><\/p>\n<p>The method\u2019s ultrafast fluorescence pulses are complemented by rapid cooling steps. \u201cOur technique relies on the fact that atoms gain energy during the imaging process, but not enough to escape the optical traps,\u201d adds\u00a0<strong>Alessandro Muzi Falconi<\/strong>, PhD candidate in Physics at the University of Trieste. \u201cWith short, intense fluorescence pulses, we can detect atoms without losses in just a few millionths of a second\u2014about a thousand times faster than typical acquisition times. Fast cooling pulses then remove the excess energy, allowing us to re-image the same atoms repeatedly.\u201d<\/p>\n<p>The team also reports the first single-atom imaging of the fermionic isotope ytterbium-173, which features six internal ground-state levels. This opens pathways toward quantum circuits based on\u00a0qudits\u00a0rather than qubits, enabling more efficient storage and processing of quantum information.<\/p>\n<p>The results, published in\u00a0<strong>Quantum Science and Technology<\/strong>\u00a0and\u00a0<strong>Physical Review Letters<\/strong>, mark a significant advance for neutral-atom platforms. Founded in 2022 through a collaboration between the University of Trieste and the CNR and supported by a \u20ac1.4-million ERC Starting Grant, the ArQuS Laboratory continues to develop next-generation tools for quantum science and technology.<a href=\"https:\/\/www.eurekalert.org\/releaseguidelines\" rel=\"nofollow noopener\" target=\"_blank\"><\/p>\n","protected":false},"excerpt":{"rendered":"Insider Brief Researchers at the ArQuS Laboratory have demonstrated Italy\u2019s first imaging of individual trapped cold atoms, achieving&hellip;\n","protected":false},"author":2,"featured_media":255857,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77],"tags":[132562,18,19,17,371,133,132563],"class_list":{"0":"post-255856","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-science","8":"tag-arqus-laboratory","9":"tag-eire","10":"tag-ie","11":"tag-ireland","12":"tag-italy","13":"tag-science","14":"tag-university-of-trieste"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ie\/115802238081665091","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/255856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/comments?post=255856"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/255856\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media\/255857"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media?parent=255856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/categories?post=255856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/tags?post=255856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}