{"id":4825,"date":"2010-02-13T08:00:51","date_gmt":"2010-02-13T13:00:51","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=4825"},"modified":"2010-02-13T08:00:51","modified_gmt":"2010-02-13T13:00:51","slug":"the-demons-in-the-details","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/4825","title":{"rendered":"The Demon&#039;s in the Details"},"content":{"rendered":"<p><a href=\"http:\/\/scienceblogs.com\/principles\/2010\/02\/entanglement_happens.php\">Uncertain Principles:  Entanglement Happens<\/a><\/p>\n<p>(Oops.  I accidentally hit <em>publish<\/em> instead of <em>save<\/em> yesterday, and didn&#8217;t add my comment.  Hence the time travel on the post.)<\/p>\n<p>There are several application people try and use entanglement to pull off some neat trick (e.g. clock synchronization) and the problems Chad points out are often glossed over.  It&#8217;s almost like the famous Sidney Harris cartoon, &#8220;Then a miracle occurs,&#8221; when the step in the procedure is &#8220;we take our entangled particles and move them an arbitrary distance apart,&#8221; which ignores the little demons Chad describes, that compromise your ability to know the measurement basis after your system has been exposed to the real world.  It&#8217;s not quite at the level of ignoring the second law of thermodynamics and proposing a perpetual motion machine, but it&#8217;s almost as naive to propose it for an arbitrary system, without working out the details.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uncertain Principles: Entanglement Happens (Oops. I accidentally hit publish instead of save yesterday, and didn&#8217;t add my comment. Hence the time travel on the post.) There are several application people try and use entanglement to pull off some neat trick &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/4825\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-4825","post","type-post","status-publish","format-standard","hentry","category-physics"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/4825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=4825"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/4825\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=4825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=4825"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=4825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}