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Quantum optics

Quantum optics

Twisted light beams sent 143 km across the sea

17 Jun 2016
Photograph of the Optical Ground Station at the Teide Observatory in Tenerife
Hello world! Twisted light was used to transmit a message to Teide Observatory. (Courtesy: European Space Agency)
Laser beams encoded with orbital angular momentum (OAM) have been sent a record-breaking 143 km bet

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Edwin Cartlidge is a science writer based in Rome
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