{"id":1010,"date":"2015-01-12T13:48:04","date_gmt":"2015-01-12T11:48:04","guid":{"rendered":"https:\/\/webs.uab.cat\/giq\/seminar\/what-nonlocality-measure\/"},"modified":"2015-01-12T13:48:04","modified_gmt":"2015-01-12T11:48:04","slug":"what-nonlocality-measure","status":"publish","type":"seminar","link":"https:\/\/webs.uab.cat\/giq\/seminar\/what-nonlocality-measure\/","title":{"rendered":"What is a nonlocality measure?"},"content":{"rendered":"<p>Besides its foundational interest, quantum nonlocality has been identified as a resource to implement various tasks in the context of device-independent quantum information processing. This naturally leads to introduce nonlocality measures to assess how useful a resource might be. Although physical intuition allows to define several quantifiers, one might ask what are the minimal mathematical requirements such measures must meet. In this talk I will approach this problem from the point of view of a resource theory following the analogy of entanglement. In order to do so, I will analyze in full mathematical detail the operations that can be implemented in the device independent scenario and under which nonlocality cannot increase. This provides a rigorous and systematical theoretical ground on how to order and quantify nonlocal behaviours since nonlocality measures must be monotonic under these operations. I will then discuss the validity of several measures from this point of view.&nbsp;<\/p>\n<div>&nbsp;<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Besides its foundational interest, quantum nonlocality has been identified as a resource to implement various tasks in the context of device-independent quantum information processing. This naturally leads to introduce nonlocality measures to assess how useful a resource might be. Although physical intuition allows to define several quantifiers, one might ask what are the minimal mathematical [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":0,"template":"","class_list":["post-1010","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/1010","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\/20"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/media?parent=1010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}