Has NASA Achieved Long-Range Quantum Teleportation?

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Has NASA Achieved Long-Range Quantum Teleportation? A Viable quantum internet, a network in which information stored in qubits is shared over long distances by entanglement, would usher in a new era of communication. it would transform the fields of data storage, precision detection and computing.

At Fermi Lab, scientists, along with partners from five institutions, have taken an important step towards achieving a quantum internet. In an article published in PRX Quantum, the team presents for the first time a demonstration of long-distance and sustained teleportation of qubits made up of photons (particles of light) with a fidelity above 90%. The qubits were teleported over a 44-kilometer-long fiber-optic network using state-of-the-art unique photon detectors, as well as out-of-the-box equipment.

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“We are delighted with these results,” Fermilab scientist Panagiotis Spentzouris, director of Fermilab’s quantum science program and one of the co-authors of the article, said in a statement.
“This is a key achievement on the path to creating a technology that will redefine the way we conduct global communication. The achievement comes just months after the US Department of Energy. unveiled its plan for a national quantum internet at a press conference at the University of Chicago.

New quantum states

Quantum teleportation is a “disembodied” transfer of quantum states from one place to another. The quantum teleportation of a qubit is achieved by quantum entanglement, in which two or more particles are inextricably linked to each other. If a pair of entangled particles is shared between two separate locations, no matter how far apart, the encoded information is teleported.

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

The Caltech and Fermilab networks, which have quasi-autonomous data processing, compatible with both the existing telecommunications infrastructure and emerging quantum processing and storage devices.

Metropolitan quantum network

Researchers use them to improve fidelity and entanglement distribution rate, with a focus on complex quantum communication protocols and basic science. “With this demonstration, we are starting to lay the groundwork for building a metropolitan quantum network in the Chicago area,” said Spentzouris.

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