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News Link • Space Travel and Exploration

Researchers Achieve Quantum Teleportation Over 10 Miles of Empty Space

• PopSci

Scientists in China have broken the record for quantum teleportation, achieving a distance of about 10 miles, according to a new study in Nature Photonics. That's a giant leap from previous achievements.

The feat brings us closer to communicating information without needing a traditional signal transmission, the researchers note.

Although it's called teleportation, no matter is really moved. Rather, the quantum state of one object is transferred to another object.

It works by entangling two objects, like photons or ions. The first teleportation experiments involved beams of light. Once the objects are entangled, they're connected by an invisible wave, like a thread or umbilical cord. That means when something is done to one object, it immediately happens to the other object, too. Einstein called this "spooky action at a distance."

Until now, this has only been achieved with particles that are at most a couple hundred feet apart. And those distances have been accomplished with fiber channels, which help preserve the photons' state.

 

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