{"id":18878,"date":"2023-11-10T12:41:39","date_gmt":"2023-11-10T11:41:39","guid":{"rendered":"https:\/\/www.uni.lu\/en\/?post_type=events&#038;p=18878"},"modified":"2024-04-17T12:22:09","modified_gmt":"2024-04-17T10:22:09","slug":"quantum-computing-the-bell-inequalities-and-qubit-entropy","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/","title":{"rendered":"Quantum Computing, the Bell Inequalities, and Qubit Entropy"},"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=\"abstract\"\n    >\nAbstract<\/h2>\n\n\n\n<p>In principle, quantum computers can speed up problem solving exponentially relative to conventional digital computers. This talk will cover Google\u2019s claim to have reached quantum supremacy, entanglement of quantum states, the Bell inequalities, and qubit entropy. The Bell inequalities are satisfied by all classical objects, but not by all quantum mechanical observables. Violations of the Bell inequalities mean that no \u201chidden variable\u201d theory can be consistent with experimental results, unless it also allows for faster than light communication. Our tests of the Bell inequalities on IBM\u2019s quantum computers show violations! The entropy of n-qubit Schr\u00f6dinger\u2019s cat states would be independent of the number of qubits in the absence of faults; but the experimentally determined entropy is nearly linear in the number of qubits. The slope of the entropy vs. the number of qubits provides a more sensitive test of the quality of a quantum computer than the IBM benchmark, based on the quantum volume.<\/p>\n\n\n\n<h3 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"about-the-speaker\"\n    >\nAbout the speaker<\/h3>\n\n\n\n<h4 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"professor-katharine-l-c-hunt\"\n    >\nProfessor Katharine L. C. Hunt<\/h4>\n\n\n\n<p><em>Department of Chemistry, Michigan State 8xav福利导航, East Lansing, Michigan 48824, USA<\/em><br><em>Distinguished Fellow, Institute for Advanced Studies, 8xav福利导航 of Luxembourg<\/em><\/p>\n\n\n\n<p>Katharine Hunt received her Ph.D. from the 8xav福利导航 of Cambridge, England, in 1978, working with Professor A. D. Buckingham on intermolecular forces and the response to applied fields. She held a National Science Foundation National Needs Postdoctoral Fellowship at the Massachusetts Institute of Technology, working with John Ross on nonequilibrium thermodynamics. In 1979, she joined the faculty at Michigan State 8xav福利导航. She became a 8xav福利导航 Distinguished Professor in 1992, and later chaired the Department of Chemistry there. She spent two sabbaticals at Stanford 8xav福利导航. She is the author of 94 publications, covering topics related to dispersion forces, interaction-induced molecular properties, collision-induced spectroscopy, nonadiabatic transition theory, nonequilibrium thermodynamics, and quantum computing. Her current visit is supported by the <a href=\"https:\/\/www.uni.lu\/research-en\/ias\/funded-projects\/distinguished\/\">Institute for Advanced Studies (IAS-funded \u201cDistinguished\u201d project)<\/a> at the 8xav福利导航 of Luxembourg.<\/p>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":42,"featured_media":18886,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"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":"2023-11-16 16:00:00","event_end_date":"2023-11-16 18:00:00","event_speaker_name":"Professor Katharine L. C. Hunt","event_speaker_link":"","event_is_online":false,"event_location":"Room 3.530, Maison du Savoir, Belval Campus, 2, avenue de l\u2019Universit\u00e9","event_street":"","event_location_link":"https:\/\/www.uni.lu\/en\/about\/campuses\/belval-campus\/","event_zip_code":"4365","event_city":"Esch-sur-Alzette","event_country":"Luxembourg"},"events-topic":[309,320],"events-type":[334,327],"organisation":[34,236],"authorship":[42],"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>Quantum Computing, the Bell Inequalities, and Qubit Entropy - 8xav福利导航 of Luxembourg<\/title>\n<meta name=\"description\" content=\"In principle, quantum computers can speed up problem solving exponentially relative to conventional digital computers. This talk will cover Google\u2019s claim\" \/>\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\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quantum Computing, the Bell Inequalities, and Qubit Entropy\" \/>\n<meta property=\"og:description\" content=\"In principle, quantum computers can speed up problem solving exponentially relative to conventional digital computers. This talk will cover Google\u2019s claim\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/\" \/>\n<meta property=\"og:site_name\" content=\"UNI EN\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/uni.lu\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-17T10:22:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2023\/11\/Katherine_Hunt-1-1024x1024.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/\",\"url\":\"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/\",\"name\":\"Quantum Computing, the Bell Inequalities, and Qubit Entropy - 8xav福利导航 of Luxembourg\",\"isPartOf\":{\"@id\":\"https:\/\/www.uni.lu\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/en\/events\/quantum-computing-the-bell-inequalities-and-qubit-entropy\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2023\/11\/Katherine_Hunt-1.png\",\"datePublished\":\"2023-11-10T11:41:39+00:00\",\"dateModified\":\"2024-04-17T10:22:09+00:00\",\"description\":\"In principle, quantum computers can speed up problem solving exponentially relative to conventional digital computers. 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