Researchers achieve sustained, high-fidelity quantum teleportation

Phys.org ^ | December 29, 2020 | University of Chicago

[BenLurkin]

Quantum teleportation is a "disembodied" transfer of quantum states from one location to another. The quantum teleportation of a qubit is achieved using quantum entanglement, in which two or more particles are inextricably linked to each other. If an entangled pair of particles is shared between two separate locations, no matter the distance between them, the encoded information is teleported.

In a paper published in PRX Quantum, the team presents for the first time a demonstration of a sustained, long-distance teleportation of qubits made of photons (particles of light) with fidelity greater than 90%.

The qubits were teleported over a fiber-optic network 27 miles (44 kilometers) long using state-of-the-art single-photon detectors, as well as off-the-shelf equipment.

The joint team—researchers at Fermilab, AT&T, Caltech, Harvard University, NASA Jet Propulsion Laboratory and University of Calgary—successfully teleported qubits on two systems: the Caltech Quantum Network and the Fermilab Quantum Network. The systems were designed, built, commissioned and deployed by Caltech's public-private research program on Intelligent Quantum Networks and Technologies, or IN-Q-NET.

Both the Caltech and Fermilab networks, which feature near-autonomous data processing, are compatible both with existing telecommunication infrastructure and with emerging quantum processing and storage devices. Researchers are using them to improve the fidelity and rate of entanglement distribution, with an emphasis on complex quantum communication protocols and fundamental science.

[SunkenCiv]

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[BroJoeK]

from the article: "...a sustained, long-distance teleportation of qubits made of photons (particles of light) with fidelity greater than 90%.
The qubits were teleported over a fiber-optic network 27 miles (44 kilometers) long..."

Riiiiiight, What's a qubit?

I saw him in person do this routine when he was about this age and I was... much better looking! ;-)

[Fred Hayek]

Outer Limits - Think Like A Reptile: “Balance the equation.”

[LibWhacker]

Captain, it appears the transporter has entangled us with a couple of nerds.

[Red Badger]

Scientists have used a small quantum computer to solve a major problem in the aviation industry 17th December 2020

How to find lost luggage?.....................

[SunkenCiv]

:^) OPh, the bags can be found, but the explanations for how they get to a different part of the country or globe often lack clarity. ;^)

[Red Badger]

Back in 2000 we had a business trip to Germany. A co-worker’s bags didn’t make it.

They went to Singapore..................

[SunkenCiv]

At the very least, the lost bags should have sent a postcard from Singapore.

[Red Badger]

I think the baggage handlers were having a little fun..................