{"id":2117,"date":"2023-07-19T14:39:47","date_gmt":"2023-07-19T12:39:47","guid":{"rendered":"https:\/\/webs.uab.cat\/giq\/?post_type=seminar&#038;p=2117"},"modified":"2023-07-19T14:39:47","modified_gmt":"2023-07-19T12:39:47","slug":"all-you-need-to-know-about-indefinite-causal-orders","status":"publish","type":"seminar","link":"https:\/\/webs.uab.cat\/giq\/seminar\/all-you-need-to-know-about-indefinite-causal-orders\/","title":{"rendered":"All You Need to Know about Indefinite Causal Orders"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">While the standard formulation of quantum theory assumes a fixed background causal structure, the process matrix formalism allows to relax this assumption and explore the possibility of processes with indefinite causal orders. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For example, one may imagine a quantum circuit in which the order between Alice and Bob\u2019s operations on a target qubit is coherently controlled by another quantum system, such that their operations are in a superposition of causal orders. After introducing the notions of causal nonseparability and noncausality\u2013 formalizing the notion of indefinite causal orders \u2013 and their certifications, I will present the most relevant causally nonseparable processes, and give examples of applications for quantum information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>While the standard formulation of quantum theory assumes a fixed background causal structure, the process matrix formalism allows to relax this assumption and explore the possibility of processes with indefinite causal orders. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For example, one may imagine a quantum circuit in which the order between Alice and Bob\u2019s operations on a target qubit is [&hellip;]<\/p>\n","protected":false},"author":2608,"featured_media":0,"template":"","class_list":["post-2117","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/2117","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\/2608"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/media?parent=2117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}