{"id":4491,"date":"2021-10-01T17:57:53","date_gmt":"2021-10-01T15:57:53","guid":{"rendered":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/?p=4491"},"modified":"2021-12-01T13:27:55","modified_gmt":"2021-12-01T12:27:55","slug":"lira-session-adam-brandenburger","status":"publish","type":"post","link":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/2021\/10\/lira-session-adam-brandenburger\/","title":{"rendered":"LIRa Session: Adam Brandenburger"},"content":{"rendered":"<p>Speaker: Adam Brandenburger<\/p>\n<p>Date and Time: Thursday, December&nbsp;2nd 2021, 16:30-18:00, <a href=\"https:\/\/www.timeanddate.com\/time\/zone\/netherlands\/amsterdam\" target=\"_blank\" rel=\"noopener noreferrer\">Amsterdam time<\/a>.<\/p>\n<p>Venue: <strong><a href=\"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/guidelines-for-online-sessions\/\">online<\/a><\/strong>.<\/p>\n<p>Title: <strong>Agreement and Disagreement in a Non-Classical World<\/strong><\/p>\n<p><em>Abstract.<\/em><br \/>\nThe Agreement Theorem (Aumann, 1976) states that if two Bayesian agents start with a common prior, then they cannot have common knowledge that they hold different posterior probabilities of some underlying event of interest. In short, the two agents cannot &#8220;agree to disagree.&#8221; This result applies in the classical domain where classical probability theory applies. But in non-classical domains (such as the quantum world), classical probability theory does not apply, and so we cannot assume that the same result holds when agents observe non-classical phenomena. Inspired by their use in quantum mechanics, we employ signed probability measures (&#8220;quasi-probabilities&#8221;) to investigate the epistemics of the non-classical world and ask, in particular: What conditions lead to agreement or allow for disagreement when agents may use signed probabilities?<\/p>\n<p>by Adam Brandenburger, Patricia Contreras-Tejada, Pierfrancesco La Mura, Giannicola Scarpa, and Kai Steverson<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaker: Adam Brandenburger<br \/>\nDate and Time: Thursday, December&nbsp;2nd 2021, 16:30-18:00, Amsterdam time.<br \/>\nVenue: online.<br \/>\nTitle: Agreement and Disagreement in a Non-Classical World<br \/>\nAbstract.<br \/>\nThe Agreement Theorem (Aumann, 1976) states that if two Bayesian agents start with a common prior, then they cannot have common knowledge that they hold different posterior probabilities of some underlying event of interest. In short, the [&#8230;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4491","post","type-post","status-publish","format-standard","hentry","category-events"],"_links":{"self":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/4491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/comments?post=4491"}],"version-history":[{"count":4,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/4491\/revisions"}],"predecessor-version":[{"id":4533,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/4491\/revisions\/4533"}],"wp:attachment":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/media?parent=4491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/categories?post=4491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/tags?post=4491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}