Quantum Teleportation Enters the Real World

 

 

 

 

 

 

Two separate teams of scientists have taken quantum teleportation from the lab into the real world. Researchers working in Calgary, Canada and Hefei, China, used existing fiber optics networks to transmit small units of information across cities via quantum entanglement — Einstein’s “spooky action at a distance.”Stepping Outside the LabAccording to quantum mechanics, some objects, like photons or electrons, can be entangled.

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A ‘spooky’ effect of physics that Einstein couldn’t believe has been photographed for the first time


The first photos of quantum-entangled particles showing a Bell inequality.
Paul-Antoine Moreau et al./Science Advances
  • Albert Einstein‘s work in part led to the prediction of quantum entanglement: the idea that two particles can remain connected across vast distances of space and time.
  • Einstein found the idea absurd and “spooky,” but it has since been proved with countless quantum physics experiments.
  • No one had ever made a photograph using the entanglement of photons (pieces of light) until a research team recently did so with a laser-based experiment.

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China Shatters “Spooky Action at a Distance” Record, Preps for Quantum Internet

 

 

Results from the Micius satellite test quantum entanglement, pointing the way toward hack-proof global communications—and a new space race.

 

 

In a landmark study, a team of Chinese scientists using an experimental satellite has tested quantum entanglement over unprecedented distances, beaming entangled pairs of photons to three ground stations across China—each separated by more than 1,200 kilometres. The test verifies a mysterious and long-held tenet of quantum theory and firmly establishes China as the front-runner in a burgeoning “quantum space race” to create a secure, quantum-based global communications network—that is, a potentially unhackable “quantum internet” that would be of immense geopolitical importance. The findings were published Thursday in Science.

 

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