Quantum teleportation leaps forward
Two teams improve long-distance transmission of information about particles
By Alexandra Witze, 11:57 AM June 15, 2012
Quantum information has leapt through the air about 100 kilometers or more in two new experiments, farther and with greater fidelity than ever before. The research brings truly long-distance quantum communication networks, in which satellites could beam encrypted information around the globe, closer to reality.
Both studies involve quantum teleportation, which transports the quantum state of one particle onto another. This Star Trek–like feat is possible because of a phenomenon called entangle...
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