{"id":239107,"date":"2026-06-16T22:12:48","date_gmt":"2026-06-17T03:12:48","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/06\/testing-the-problem-of-time-with-cold-atoms"},"modified":"2026-06-16T22:12:48","modified_gmt":"2026-06-17T03:12:48","slug":"testing-the-problem-of-time-with-cold-atoms","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/06\/testing-the-problem-of-time-with-cold-atoms","title":{"rendered":"Testing the problem of time with cold atoms"},"content":{"rendered":"<p><a class=\"blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/testing-the-problem-of-time-with-cold-atoms.jpg\"><\/a><\/p>\n<p>An ultracold atomic gas is used as a self-contained miniuniverse to show that time can be defined without an external clock. It\u2019s demonstrated that entropy exchange between different sectors of the system provides an internal time that robustly orders the dynamics and yields a Schr\\ odinger description of the observed evolution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An ultracold atomic gas is used as a self-contained miniuniverse to show that time can be defined without an external clock. It\u2019s demonstrated that entropy exchange between different sectors of the system provides an internal time that robustly orders the dynamics and yields a Schr\\ odinger description of the observed evolution.<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[385,48],"tags":[],"class_list":["post-239107","post","type-post","status-publish","format-standard","hentry","category-evolution","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/239107","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\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=239107"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/239107\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=239107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=239107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=239107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}