{"id":2467,"date":"2025-07-09T15:14:39","date_gmt":"2025-07-09T13:14:39","guid":{"rendered":"https:\/\/webs.uab.cat\/giq\/?post_type=seminar&#038;p=2467"},"modified":"2025-07-09T15:14:39","modified_gmt":"2025-07-09T13:14:39","slug":"monitoring-non-relativistic-information-dynamics-via-spatio-temporal-bell-like-inequalities","status":"publish","type":"seminar","link":"https:\/\/webs.uab.cat\/giq\/seminar\/monitoring-non-relativistic-information-dynamics-via-spatio-temporal-bell-like-inequalities\/","title":{"rendered":"Monitoring non-relativistic information dynamics via spatio-temporal Bell-like inequalities"},"content":{"rendered":"\n<p>Bell and Leggett-Garg inequalities, which bound combinations of correlation functions under classical assumptions, are famously violated by quantum systems. I will introduce spatio-temporal extensions of these inequalities and use them to probe the non-relativistic quantum dynamics of spin chains. The key result is that their violations reveal the finite speed for information spreading, constrained by the Lieb-Robinson bound. In specific regimes, these violations also serve as tests on nonlocality and macrorealism in many-body quantum systems.&nbsp;<\/p>\n\n\n\n<p>[1] A. Tononi, M. Lewenstein,&nbsp; Quantum Sci. Technol. 10, 03LT01 (2025).<\/p>\n\n\n\n<p>[2] G. M\u00fcller-Rigat, D. Farina, M. Lewenstein, A. Tononi, Spatial Leggett-Garg inequalities, to appear on arXiv (2025).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bell and Leggett-Garg inequalities, which bound combinations of correlation functions under classical assumptions, are famously violated by quantum systems. I will introduce spatio-temporal extensions of these inequalities and use them to probe the non-relativistic quantum dynamics of spin chains. The key result is that their violations reveal the finite speed for information spreading, constrained by [&hellip;]<\/p>\n","protected":false},"author":2605,"featured_media":0,"template":"","class_list":["post-2467","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/2467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar"}],"about":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/types\/seminar"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/users\/2605"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/media?parent=2467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}