{"id":3732,"date":"2026-02-08T13:44:19","date_gmt":"2026-02-08T10:14:19","guid":{"rendered":"https:\/\/psi-net.ir\/en\/?p=3732"},"modified":"2026-02-08T13:44:19","modified_gmt":"2026-02-08T10:14:19","slug":"stepwise-quantum-tunneling-in-ultracold-atoms","status":"publish","type":"post","link":"https:\/\/psi-net.ir\/en\/stepwise-quantum-tunneling-in-ultracold-atoms\/","title":{"rendered":"Stepwise quantum tunneling in ultracold atoms"},"content":{"rendered":"<div style=\"text-align:justify\">In a new experiment, researchers have observed a different type of quantum tunneling in supercooled atoms. Contrary to the common image in which the particle continuously passes through an obstacle, in this system tunneling occurs discontinuously and step by step; So that the particles are first placed in specific energy states and then tunnel to the next state.<\/p>\n<p>\n\ud83e\uddca Conditions that make this phenomenon possible<br \/>\nThis behavior appears when atoms are placed in engineered potentials, such as laser-made optical lattices, and at temperatures very close to absolute zero. In such a situation, the energy levels of the system are highly disjointed, and this disjointedness causes tunneling to behave like moving on energy stairs.<\/p>\n<p>\nWhy is this tunneling different?<br \/>\nThe key point of this observation is that, for the first time, tunneling intermediate states are directly traceable; Modes that are not usually seen in simpler models. This behavior has an interesting conceptual similarity to superconducting systems, such as Josephson junctions, where discrete transitions also play a fundamental role in the system dynamics.<\/p>\n<p>\n\ud83d\ude80 The importance of this result for quantum physics<br \/>\nStep-by-step control of tunneling can be a powerful tool for quantum simulation and dynamic study of complex systems. This experiment shows that super-cold atoms are not only suitable for reconstructing theoretical models, but also provide the possibility of examining quantum transition paths in detail; A topic that is vital for the development of future quantum technologies.<\/p>\n<p>\nLink to the source<\/div>\n","protected":false},"excerpt":{"rendered":"<p>In a new experiment, researchers have observed a different type of quantum tunneling in supercooled atoms. Contrary to the common image in which the particle continuously passes through an obstacle, in this system tunneling occurs discontinuously and step by step; So that the particles are first placed in specific energy states and then tunnel to [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[196],"tags":[],"class_list":["post-3732","post","type-post","status-publish","format-standard","hentry","category-news-en"],"_links":{"self":[{"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/posts\/3732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/comments?post=3732"}],"version-history":[{"count":1,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/posts\/3732\/revisions"}],"predecessor-version":[{"id":3743,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/posts\/3732\/revisions\/3743"}],"wp:attachment":[{"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/media?parent=3732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/categories?post=3732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/psi-net.ir\/en\/wp-json\/wp\/v2\/tags?post=3732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}