Beam me up not too far away.

[George K]

https://phys.org/news/2020-12-sustained-high-fidelity-quantum-teleportation.html

This month, scientists at Fermi National Accelerator Laboratory—a U.S. Department of Energy national laboratory affiliated with the University of Chicago—along with partners at five institutions took a significant step in the direction of realizing a quantum internet.

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.

"We're thrilled by these results," said Fermilab scientist Panagiotis Spentzouris, head of the Fermilab quantum science program and one of the paper's co-authors. "This is a key achievement on the way to building a technology that will redefine how we conduct global communication."

The achievement comes just a few months after the U.S. Department of Energy unveiled its blueprint for a national quantum internet at a press conference at the University of Chicago.

Linking particles

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.

[Mik]

I marginally understand some of the basics of quantum physics, but applying it is way over my head.

[Aqua Letifer]