Quantum satellite shatters entanglement record

What does make the world turn?
User avatar
Nikki Nyx
Veteran Poster
Posts: 2042
Joined: Wed Jun 07, 2017 12:40 am
Custom Title: cognitively consonant
Location: playing croquet in Wonderland

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.
What are the facts? Again and again and again-what are the facts? Shun wishful thinking, ignore divine revelation, forget what “the stars foretell,” avoid opinion, care not what the neighbors think, never mind the unguessable “verdict of history”--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!
—Lazarus Long, from Time Enough for Love, by Robert A. Heinlein

User avatar
Gord
Real Skeptic
Posts: 29108
Joined: Wed Apr 29, 2009 2:44 am
Custom Title: Silent Ork
Location: Transcona

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....
"Knowledge grows through infinite timelessness" -- the random fictional Deepak Chopra quote site
"You are also taking my words out of context." -- Justin
"Nullius in verba" -- The Royal Society ["take nobody's word for it"]
#ANDAMOVIE

User avatar
Nikki Nyx
Veteran Poster
Posts: 2042
Joined: Wed Jun 07, 2017 12:40 am
Custom Title: cognitively consonant
Location: playing croquet in Wonderland

Re: Quantum satellite shatters entanglement record

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

You definitely pegged the good news/bad news.
What are the facts? Again and again and again-what are the facts? Shun wishful thinking, ignore divine revelation, forget what “the stars foretell,” avoid opinion, care not what the neighbors think, never mind the unguessable “verdict of history”--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!
—Lazarus Long, from Time Enough for Love, by Robert A. Heinlein


Return to “Science, Technology, and Mathematics”

Who is online

Users browsing this forum: 360spider [spider] and 2 guests