{"id":559,"date":"2008-08-08T00:30:04","date_gmt":"2008-08-08T05:30:04","guid":{"rendered":"http:\/\/arxivblog.com\/?p=559"},"modified":"2008-08-08T00:30:13","modified_gmt":"2008-08-08T05:30:13","slug":"spooky-action-at-a-distance-gets-spookier","status":"publish","type":"post","link":"https:\/\/arxivblog.com\/?p=559","title":{"rendered":"Spooky action at a distance gets spookier"},"content":{"rendered":"<p><a href=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2008\/08\/spookier-spookiness.jpg\" title=\"spookier-spookiness.jpg\"><img decoding=\"async\" src=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2008\/08\/spookier-spookiness.thumbnail.jpg\" alt=\"spookier-spookiness.jpg\" \/><\/a><\/p>\n<p>Take a pair of entangled photons and perform a measurement on one of them. According to the strange laws of quantum mechanics, this measurement immediately influences the state of the second photon, no matter how far apart they are. Einstein bridled at the possibility that an instantaneous influence could take place. He called it spooky action at a distance and the term stuck.<\/p>\n<p>Today spooky action at a distance just got spookier. Stephen Harris at Stanford University posts details of an experiment in which he zaps one photon in an entangled pair in a way that ensures that this photon is modulated.<\/p>\n<p>But his extraordinary result is that after zapping the first photon, he can then zap the second photon in way that negates (or enhances) the modulation\u00a0 of the first.<\/p>\n<p>That&#8217;s not just spooky, it&#8217;s double spooky.\u00a0 It opens up the possibility of a few neat new tricks such as pulse shaping photons at a distance. And it raises some interesting questions about the nature of entanglement and how it may come to be exploited in future.<\/p>\n<p>Ref: <a href=\"http:\/\/arxiv.org\/abs\/0808.0903\">arxiv.org\/abs\/0808.0903<\/a>: Nonlocal Modulation of Entangled Photons<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Take a pair of entangled photons and perform a measurement on one of them. According to the strange laws of quantum mechanics, this measurement immediately influences the state of the second photon, no matter how far apart they are. Einstein bridled at the possibility that an instantaneous influence could take place. He called it spooky [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-559","post","type-post","status-publish","format-standard","hentry","category-weird-n-spooky"],"_links":{"self":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=559"}],"version-history":[{"count":0,"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/559\/revisions"}],"wp:attachment":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}