Quantum teleportation has begun to change the world - Amplify Oshkosh

Quantum teleportation has begun to change the world

Quantum teleportation has begun to change the world

Story by Joseph Shavit
Researchers have uncovered novel ways to transmit information instantly across vast distances, with potential to revolutionize computing, communications, and cryptography. CREDIT: CC BY-SA 4.0)
Researchers have uncovered novel ways to transmit information instantly across vast distances, with potential to revolutionize computing, communications, and cryptography. CREDIT: CC BY-SA 4.0)© The Brighter Side of News

Quantum teleportation, once confined to the pages of science fiction, is steadily becoming a tangible scientific achievement. Advances in quantum mechanics over the last decade have transformed teleportation from a theoretical concept into an experimental reality.

These breakthroughs have revealed innovative methods for transmitting information instantaneously over vast distances, offering transformative possibilities for computing, communication, and cryptography. Scientists are now closer than ever to bridging the gap between imagination and reality in this cutting-edge field.

The Science of Quantum Teleportation

At its core, teleportation in the quantum world isn’t about physically transporting objects or people, as popularized by franchises like Star Trek. Instead, it involves transmitting quantum states—essentially the fundamental properties of particles like electrons or photons—without physical movement of the particles themselves.

Star Trek teleportation. (CREDIT: CC BY-SA 4.0)© The Brighter Side of News

This is made possible through quantum entanglement, a phenomenon where two or more particles become so interconnected that the state of one directly influences the other, no matter how far apart they are.

In April 2022, a groundbreaking study led by Dr. Jian-Wei Pan, a physicist at the University of Science and Technology of China, reported a new record in quantum teleportation distance. Using entangled photons, Pan and his team successfully transmitted quantum information over 1,200 kilometers via satellite

Published in Physical Review Letters, the study marks a significant leap from earlier experiments that were limited to tens or hundreds of kilometers.

“We’ve demonstrated that quantum entanglement can be preserved over incredibly long distances using satellite-based links,” said Dr. Pan. “This paves the way for global-scale quantum communication networks.”

 

Entanglement at the Edge of Possibility

 

The key to the experiment’s success lies in the use of Micius, a Chinese satellite launched in 2016 specifically for quantum experiments. Micius creates pairs of entangled photons and transmits one photon to a ground station while the other remains aboard the satellite. When the photon on Earth is manipulated, its twin in space instantly reflects the same change, proving that entanglement holds even over immense distances.

In a complementary study published in Nature, researchers at Delft University of Technology in the Netherlands achieved high-fidelity teleportation of quantum states between two network nodes without losing information. Using nitrogen-vacancy centers in diamonds to create and store quantum bits (qubits), they demonstrated a teleportation accuracy rate of 90%, a record for terrestrial quantum networks.

“Achieving such a high level of accuracy shows that practical quantum networks are feasible,” said Dr. Ronald Hanson, the project’s lead scientist. “This brings us closer to building a quantum internet capable of unhackable communication.”

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