{"id":981,"date":"2014-03-24T20:42:51","date_gmt":"2014-03-24T18:42:51","guid":{"rendered":"https:\/\/webs.uab.cat\/giq\/seminar\/measurement-sharpness-trims-nonlocality-and-contextuality-every-probabilistic\/"},"modified":"2014-03-24T20:42:51","modified_gmt":"2014-03-24T18:42:51","slug":"measurement-sharpness-trims-nonlocality-and-contextuality-every-probabilistic","status":"publish","type":"seminar","link":"https:\/\/webs.uab.cat\/giq\/seminar\/measurement-sharpness-trims-nonlocality-and-contextuality-every-probabilistic\/","title":{"rendered":"Measurement sharpness trims nonlocality and contextuality in every probabilistic theory"},"content":{"rendered":"<p>Gathering data through measurements is at the basis of every experimental science. Ideally,&nbsp;measurements should be repeatable and, when extracting only coarse-grained data, they should&nbsp;allow the experimenter to&nbsp;retrieve the finer details at a later time. However, in practice most&nbsp;measurements appear to be noisy. Here we postulate that, despite the imperfections observed in real&nbsp;life experiments, there exists a fundamental level&nbsp;where all measurements are ideal. Combined with&nbsp;the requirement that ideal measurements remain so when coarse-grained or applied in parallel on&nbsp;spacelike separated systems, our postulate places a powerful&nbsp;constraint on the amount of nonlocality&nbsp;and contextuality that can be found in an arbitrary physical theory, bringing down the violation&nbsp;of Bell and Kocher-Specker inequalities near to its quantum value. In addition, it&nbsp;provides a new&nbsp;compelling motivation for the principles of Local Orthogonality and Consistent Exclusivity, recently&nbsp;proposed for the characterization of the quantum set of probability distributions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gathering data through measurements is at the basis of every experimental science. Ideally,&nbsp;measurements should be repeatable and, when extracting only coarse-grained data, they should&nbsp;allow the experimenter to&nbsp;retrieve the finer details at a later time. However, in practice most&nbsp;measurements appear to be noisy. Here we postulate that, despite the imperfections observed in real&nbsp;life experiments, there exists [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":0,"template":"","class_list":["post-981","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/981","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=981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}