Quantum satellite shatters entanglement record

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Nikki Nyx
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Quantum satellite shatters entanglement record

Postby Nikki Nyx » Fri Jun 16, 2017 8:51 pm

Particles of light born in space have connected two cities via a quantum link about 10 times longer than any created before.

A quantum-communications satellite beamed photons to Earth, separating them by more than 1,200 kilometers. The feat showed that the particles of light can retain a strange type of interconnectedness, known as quantum entanglement, even when flung to opposite ends of a country, researchers from China report in the June 16 Science. The previous distance record was about 100 kilometers (SN: 6/30/12, p. 10). Launched in 2016, the one-of-a-kind satellite is laying the groundwork for a space-based network of quantum communication.

“It’s a huge achievement for quantum entanglement and quantum science,” says physicist Thomas Jennewein of the University of Waterloo in Canada.

Scientists have previously beamed photons up to a satellite and back again (SN Online: 6/5/16), but those particles were not entangled. Until now, no one had distributed entangled particles from space. “China is now clearly taking the world leadership in this area of quantum communication,” Jennewein says.

Read the article here.
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Re: Quantum satellite shatters entanglement record

Postby Gord » Sat Jun 17, 2017 1:10 am

Cooooool.

Good thing China's taking up the reigns, now that Britain and the US have taken up failing.

Bad thing that we can't trust China's scientists to be unentangled from China's government, though....
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Re: Quantum satellite shatters entanglement record

Postby Nikki Nyx » Sat Jun 17, 2017 1:11 am

You definitely pegged the good news/bad news.
"An extraordinary claim requires extraordinary proof."—Marcello Truzzi

"What can be asserted without evidence can also be dismissed without evidence."—Christopher Hitchens


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