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March 7th, 2006
Towards entangled-photon LEDs
Abstract:
Scientists in the UK have been able to generate pairs of entangled photons from a nanoscale crystal of semiconductor known as a "quantum dot" far more efficiently than was possible before. The breakthrough was made by Andrew Shields at Toshiba and colleagues at the University of Cambridge, who produced entangled photons with an efficiency of 70% - compared to a previous best figure of 49%. The improved performance approaches that required for useful applications, which means that devices emitting entangled light could one day be as common as lasers and light-emitting diodes.
Source:
nanotechweb
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