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Digital information quantum teleported

by on30 December 2019

Beam me up moggy

Scientists at the University of Bristol and the Technical University of Denmark have achieved quantum teleportation between two computer chips for the first time.

The team managed to send information from one chip to another instantly without them being physically or electronically connected, in a feat that opens the door for quantum computers and quantum internet.

This kind of teleportation is made possible by a phenomenon called quantum entanglement, where two particles become so entwined with each other that they can "communicate" over long distances. Changing the properties of one particle will cause the other to instantly change too, no matter how much space separates the two of them. In essence, information is being teleported between them.

Hypothetically, there's no limit to the distance over which quantum teleportation can operate. The way we understand it, which is probably wrong, was that nothing can travel faster than the speed of light, but quantum teleportation breaks that speed limit.However if the quantum cats are willing, the experiment could show how we will break the light-speed limit.

The team generated pairs of entangled photons on the chips, and then made a quantum measurement of one. This observation changes the state of the photon, and those changes are then instantly applied to the partner photon in the other chip.

Last modified on 30 December 2019
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