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Researchers Use Teleportation To Beam A Single Photon 97km
Two teams of researchers have extended the reach of quantum teleportation to unprecedented lengths.
The groundbreaking research could be a step towards creating quantum computers and other technology operating at speeds far in excess of current limits.
And while teleporting humans may still be a long way off, researchers believe the latest work is a big step forward.
Quantum researchers have managed to send a single proton 97km across a lake in China. It is hoped the work could lead to ultra fast communications systems.
The team was able to teleport a qubit (a standard unit of data in quantum computing) 97 kilometers across a lake using a small set of photons without fiberoptic cables or other intermediaries.
They used a complex laser targetting device for the experiment.
Quantum teleportation relies on a phenomenon known as entanglement, through which quantum particles share a fragile, invisible link across space.
Two entangled photons, for instance, can have correlated, opposite polarization states—if one photon is vertically polarized, for instance, the other must be horizontally polarized.
But, thanks to the intricacies of quantum mechanics, each photon’s specific polarization remains undecided until one of them is measured.
At that instant the other photon’s polarization snaps into its opposing orientation, even if many kilometers have come between the entangled pair.
Read more here: http://www.dailymail.co.uk/sciencetech/article-2186667/Researchers-use-teleportation-beam-single-photon-97km.html
