{"id":36642,"date":"2025-03-17T11:01:34","date_gmt":"2025-03-17T10:01:34","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-en\/?post_type=events&#038;p=36642"},"modified":"2025-03-17T11:01:35","modified_gmt":"2025-03-17T10:01:35","slug":"physics-colloquium_augusto-smerzi","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium_augusto-smerzi\/","title":{"rendered":"Physics Colloquium"},"content":{"rendered":"\n<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\">\n<h2 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"unveiling-entanglement-for-precision-measurements\"\n    >\n<strong>Unveiling Entanglement for Precision Measurements<\/strong><\/h2>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<p><strong>Abstract:<\/strong><\/p>\n\n\n\n<p>Multipartite entanglement (ME) is crucial in quantum technologies. However, its detection and characterization are challenging due to the exponential growth of Hilbert space with the amount of resources necessary for their implementation. In this talk, I will provide a conceptual and operational perspective on quantum entanglement, distinguishing it from classical correlations. I will introduce a novel approach to detecting and characterizing ME based on the response of quantum-correlated states to external driving. This method leverages Fisher information, a key quantity in parameter estimation theory, which not only quantifies a system\u2019s sensitivity to parameter changes but also serves as a witness for entanglement. Furthermore, by establishing a direct connection between Fisher information and the structure of entangled states, I will demonstrate how Young diagrams encode the redistribution of Fisher information across different partitions of a quantum system, providing a systematic framework for classifying multipartite entanglement.\u00a0\u00a0This method is scalable and experimentally viable, compatible with high-precision measurement technologies such as atomic interferometry.<\/p>\n\n\n\n<p><strong>About the speaker:<\/strong><\/p>\n\n\n\n<p>Augusto Smerzi is Research Director at the Optics National Institute of the National Research Council (CNR-INO), co-director and leader of the theoretical group of the Quantum Science and Technology in Arcetri (QSTAR) institute, Florence. The group is internationally renowned for the quantum theory of phase estimation and the use of statistical speeds to characterize multipartite entanglement. These results have established the Fisher information as a tool for the characterization of complex quantum states and their metrological usefulness. Furthermore, the group has established expertise in the study of the nonlinear dynamics of coherent matter waves in the context of dilute, trapped Bose-Einstein condensates.<\/p>\n\n\n\n<p>This year we will continue with the new format:<\/p>\n\n\n\n<ul class=\"ulux-list\">\n<li class=\"ulux-list-item\"><strong>Onsite at Campus Limpertsberg<\/strong>, \u00a0where you will have the opportunity <strong>to meet the speaker over the lunch<\/strong>. Catering<strong> <\/strong>is offered from<strong> 12:00 PM <\/strong>to all <strong>registered participants<\/strong> (BSC Hall). Please <strong>register below <\/strong>for the lunch <strong>latest on 04 April 2025<\/strong>.  <strong>Talk <\/strong>at<strong> 1:00 PM <\/strong>in<strong> BSC 0.03<\/strong>.<\/li>\n\n\n\n<li class=\"ulux-list-item\"><strong>Online \u2013 through Webex<\/strong> \u2013 to give you the opportunity to listen to the talk in case you are travelling or cannot make it onsite at Campus Limpertsberg. Here are the details to join the talk online: <strong>Meeting number<\/strong>: <em>2730 174 3771<\/em>  <strong>Password<\/strong>: eY3QZm2TT9u<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-unilux-blocks-custom-buttons btn-list\"><li class=\"wp-block-unilux-blocks-custom-button\"    aria-disabled=\"false\"\n    >\n    <a\n        role=\"link\"\n        aria-disabled=\"false\"\n                    href=\"https:\/\/ulsurvey.uni.lu\/index.php\/195249?lang=en\"\n                target=\"_self\"\n        class=\"btn btn--primary\"\n            >Lunch registration<\/a>\n<\/li>\n\n\n<li class=\"wp-block-unilux-blocks-custom-button\"    aria-disabled=\"false\"\n    >\n    <a\n        role=\"link\"\n        aria-disabled=\"false\"\n                    href=\"https:\/\/unilu.webex.com\/wbxmjs\/joinservice\/sites\/unilu\/meeting\/download\/c8f8405342f2480fbf92821f38fdf956?siteurl=unilu&#038;MTID=m0380cccd6100b3fc656875d2205af363\"\n                target=\"_self\"\n        class=\"btn btn--primary\"\n            >Webex link<\/a>\n<\/li>\n<\/ul>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":105,"featured_media":36643,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":{"x":0.48,"y":0.48},"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2025-04-09 13:00:00","event_end_date":"2025-04-09 15:00:00","event_speaker_name":"Prof. Augusto Smerzi","event_speaker_link":"","event_is_online":false,"event_location":"BS 0.03 Campus Limpertsberg","event_street":"162a, avenue de la Fa\u00efencerie","event_location_link":"https:\/\/www.uni.lu\/en\/about\/campuses\/limpertsberg-campus\/","event_zip_code":"1511","event_city":"Luxembourg","event_country":"Luxembourg"},"events-topic":[315],"events-type":[329,322],"organisation":[80,29,95],"authorship":[105],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Physics Colloquium - FSTM events I Uni.lu<\/title>\n<meta name=\"description\" content=\"Abstract: Multipartite entanglement (ME) is crucial in quantum technologies. However, its detection and characterization are challenging due to the\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium_augusto-smerzi\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Colloquium\" \/>\n<meta property=\"og:description\" content=\"Abstract: Multipartite entanglement (ME) is crucial in quantum technologies. 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