STRANGE: ‘Twisted light’ beamed across Vienna. Is this a future audiophile application?

light beam over Vienna

Physicists have sent a beam of twisted light 3km through the air above Vienna.

It is the first time that information has been transmitted outdoors using the "twist" of a visible light beam.

This twisting property could allow very fast communication because light with different amounts of twist, encoding separate channels of information, could be sent simultaneously.

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