{"id":216478,"date":"2025-06-24T02:16:51","date_gmt":"2025-06-24T07:16:51","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/06\/universal-embezzlers-naturally-emerge-in-critical-fermion-systems-study-finds"},"modified":"2025-06-24T02:16:51","modified_gmt":"2025-06-24T07:16:51","slug":"universal-embezzlers-naturally-emerge-in-critical-fermion-systems-study-finds","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/06\/universal-embezzlers-naturally-emerge-in-critical-fermion-systems-study-finds","title":{"rendered":"Universal embezzlers naturally emerge in critical fermion systems, study finds"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/universal-embezzlers-naturally-emerge-in-critical-fermion-systems-study-finds.jpg\"><\/a><\/p>\n<p>Embezzlement of entanglement is an exotic phenomenon in quantum information science, describing the possibility of extracting entanglement from a resource system without changing its quantum state. In this context, the resource systems play the role of a catalyst, enabling a state transition that would otherwise be impossible, without being consumed in the process. For embezzlement of entanglement to be possible, the resource state needs to be highly entangled.<\/p>\n<p>The term \u201cuniversal embezzler\u201d refers to the idea of a bipartite quantum system where every state is sufficiently entangled to make <a href=\"https:\/\/phys.org\/tags\/embezzlement\/\" rel=\"tag\" class=\"\">embezzlement<\/a> possible. So far, it seemed highly questionable that physical systems exhibiting such strong entanglement properties could exist in the first place.<\/p>\n<p>Yet researchers at Leibniz University Hannover have now shown that universal embezzlement emerges in all critical fermion chains, meaning one-dimensional fermion systems at quantum phase transitions. While their paper, <a href=\"https:\/\/www.nature.com\/articles\/s41567-025-02921-w\" target=\"_blank\">published<\/a> in <i>Nature Physics<\/i>, is merely theoretical, it could open new possibilities for the study of many-body physics and for the development of quantum technologies.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Embezzlement of entanglement is an exotic phenomenon in quantum information science, describing the possibility of extracting entanglement from a resource system without changing its quantum state. In this context, the resource systems play the role of a catalyst, enabling a state transition that would otherwise be impossible, without being consumed in the process. For embezzlement [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617],"tags":[],"class_list":["post-216478","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/216478","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=216478"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/216478\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=216478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=216478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=216478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}