Physicists Just Used Quantum Entanglement and Teleportation to Transmit Information Between Computer Chips for the First Time Ever

Tuesday, 31 December 2019 - 9:48AM
Tuesday, 31 December 2019 - 9:48AM
Physicists Just Used Quantum Entanglement and Teleportation to Transmit Information Between Computer Chips for the First Time Ever
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A team of physicists at the University of Bristol in the United Kingdom have demonstrated – quite significantly – the newfound technology to quantum teleport information between computer chips using the laws of quantum entanglement, according to a report from Science Alert.

Quantum entanglement is when at least two particles are inextricably connected. Knowing something about Particle A allows you to make assumptions about Particle B. Doing something to Particle A will also have an impact on Particle B, even if they're miles apart.

Quantum teleportation is the process of transmitting information from one place to another without physically transporting it. Using quantum entanglement to achieve this means programming Particle A in order to exact a change in Particle B.

"We were able to demonstrate a high-quality entanglement link across two chips in the lab, where photons on either chip share a single quantum state," said Dan Llewellyn, a quantum physicist from the University of Bristol speaking in an official statement. "Each chip was then fully programmed to perform a range of demonstrations which utilise the entanglement."

"The flagship demonstration was a two-chip teleportation experiment, whereby the individual quantum state of a particle is transmitted across the two chips after a quantum measurement is performed," Llewellyn continued. "This measurement utilises the strange behaviour of quantum physics, which simultaneously collapses the entanglement link and transfers the particle state to another particle already on the receiver chip."

By carefully calibrating the information for low interference, the team was able to achieve over a 90% success rate. That is statistically incredible. Although the phenomenon is currently confined to a lab setting, it lays significant groundwork for the future.

"Quantum photonic devices and classical electronic controls will open the door for fully chip-based CMOS-compatible quantum communication and information processing networks," said the study's lead author, Dr. Jianwei Wang, who is now at Peking University.

In other words: "The development of technologies which can process information based on the laws of quantum physics are predicted to have profound impacts on modern society," summarized the release.

A paper has been published in the peer-reviewed scientific journal Nature Physics.