{"id":1628,"date":"2007-07-30T09:16:02","date_gmt":"2007-07-30T09:16:02","guid":{"rendered":"http:\/\/scienceblogs.com\/principles\/2007\/07\/30\/physics-news-quantum-optics-ed\/"},"modified":"2007-07-30T09:16:02","modified_gmt":"2007-07-30T09:16:02","slug":"physics-news-quantum-optics-ed","status":"publish","type":"post","link":"http:\/\/chadorzel.com\/principles\/2007\/07\/30\/physics-news-quantum-optics-ed\/","title":{"rendered":"Physics &#8220;News&#8221;: Quantum Optics Edition"},"content":{"rendered":"<p>I&#8217;m on vacation this week, and taking this opportunity to clear out a large backlog of news items that I flagged as interesting, but never got around to commenting on. I&#8217;ll group them thematically, just to spread things out over a few days, and this post highlights a couple of new things in the quantum optics field:<\/p>\n<ul>\n<li><a href=\"http:\/\/physicsweb.org\/articles\/news\/11\/6\/13\/1?rss=2.0\">&#8220;Single atom entangles two photons&#8221;<\/a>: pretty much what it sounds like. The Rempe group in Garching has used a single atom trapped in an optical cavity to produce an entangled pair of photons by sequential interaction between the atom and a couple of laser pulses. Like everything else in the field, this might be useful for quantum computation someday, at least if they can improve on the 1.3% efficiency&#8230;<\/li>\n<li><a href=\"http:\/\/physicsweb.org\/articles\/news\/11\/7\/23\/1?rss=2.0\">&#8220;Atoms swap spins&#8221;<\/a>: This is a somewhat deceptive title for a nice bit of work by my old group at NIST. They used an &#8220;optical lattice&#8221; system, which is a set of interfering lasers making a three-dimensional array of atom traps, to do quantum logic operations on atoms located in neighboring traps. They demonstrated the ability to change the state of one atom in a pair based on the state of the other atom in the pair, which is the key operation you need to be able to do to build a quantum computer. They&#8217;re not going to be factoring large numbers any time soon, but it&#8217;s a really cool demonstration.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m on vacation this week, and taking this opportunity to clear out a large backlog of news items that I flagged as interesting, but never got around to commenting on. I&#8217;ll group them thematically, just to spread things out over a few days, and this post highlights a couple of new things in the quantum&hellip; <a class=\"more-link\" href=\"http:\/\/chadorzel.com\/principles\/2007\/07\/30\/physics-news-quantum-optics-ed\/\">Continue reading <span class=\"screen-reader-text\">Physics &#8220;News&#8221;: Quantum Optics Edition<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"1","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-1628","post","type-post","status-publish","format-standard","hentry","category-physics","entry"],"_links":{"self":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/1628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/comments?post=1628"}],"version-history":[{"count":0,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/1628\/revisions"}],"wp:attachment":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/media?parent=1628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/categories?post=1628"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/tags?post=1628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}