Published in Physics World, 12 Jan 2011
Two independent groups have demonstrated how a pair of entangled photons can transfer their entanglement to and from a solid – the process that should one day form the backbone of so-called quantum memories or repeaters. These devices would enable quantum communication systems to transmit information over larger distances, with significantly reduced degradation.
“While I was sceptical a few years ago that a useful quantum repeater or quantum network could be built, I am now very confident…that this goal can be achieved in the next five to ten years,” says Wolfgang Tittel of the University of Calgary, Canada, an author of one of the papers that appear in Nature today. […]
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