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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsChina’s new quantum satellite will try to teleport data outside the bounds of space and time
The rocket carrying the first quantum satellite takes off in Jiuquan, China on August 16, 2016. (Reuters/China Daily)
WRITTEN BY Tim Fernholz
4 hours ago
This week, China launched the worlds first quantum satellite. So what exactly does this mean?
(T)he satellite is designed to establish ultra-secure quantum communications by transmitting uncrackable keys from space to the ground, Xinhua, Chinas state news agency, wrote after the equipment was launched on a rocket from the Gobi desert. It could also conduct experiments on the bizarre features of quantum theories, such as entanglement.
Uncrackable keys? Bizarre features? Both true. This satellite is designed to literally teleport information, to distances 1,200 kilometers (746 miles) away.
Its pretty wild stuff. We asked Spiros Michalakis, a mathematician and researcher at Caltechs Institute for Quantum and Matter, to walk us through it.
http://qz.com/760804/chinas-new-quantum-satellite-will-try-to-teleport-data-outside-the-bounds-of-space-and-time-and-create-an-unbreakable-code/
Calculating
(2,955 posts)That this is how you get invaded by extra dimensional aliens or something like that.
Jeffersons Ghost
(15,235 posts)Last edited Sat Aug 20, 2016, 09:25 PM - Edit history (9)
NSA online agents look just like humans; and are interested in this kind of Opening Post.
Here is an early television show about a US Federal agency, in charge of deciphering code, which resembles the NSA:
NSA agents might receive an ancient, slightly, coded signal from 1957, today. It teleported through the bullshit, Chinese space-time continuum. In the next short video link, the real code lurks in the news report, where the hidden messages are openly displayed. In 1957, the Union of Soviet Socialists Republic hid an "S" code, to KGB agents, in the USA. By launching Sputnik 1, into successful orbit, the USSR became the first nation to produce radio signal from space. This historic launch initiated the space-race.
Jeffersons Ghost
(15,235 posts)Since the late 50s several important musicians - including Johnny Cash - got a hit with this song, which was finally made into a movie, with an all-star cast.
mainer
(12,017 posts)That's what white supremacists always say.
angrychair
(8,677 posts)They didn't invent this technological concept but neither did the US, not alone.
More importantly, as explained by the Chinese, their concept of how it works is a lot more propaganda than science. What they proposed is a dead end technology that cannot sustain quantum communications. Especially in a satellite.
It may be simulating it but it won't be it.
Why are they talking about encryption keys with quantum communications?
There is no need to "encrypt" quantum communications, because quantum communications itself is literally unhackable between two points.
Lastly, by its very nature, no encryption key is unhackable.
GummyBearz
(2,931 posts)I gripe about american education as much as anyone, but the one thing we do right is teach our science/engineering types to be creative by making them take art type classes instead of making them memorize equations from the age of 12. This is why american educated engineers are worth 10 chinese educated engineers. And why any prospective chinese engineer, with the ability, will come to the US for grad school. Making someone goose step to the tune of what other people figured out will not result in a creative mind.
mainer
(12,017 posts)Remember when we thought we could crush the North Vietnamese army like a bug?
To underestimate another country and its talents, just because we're naturally "better than them," is to be blind.
It's worthwhile visiting China, just to see that they're not all mindless robots memorizing equations.
http://news.nationalpost.com/news/world/chinese-delivery-worker-who-solved-complex-math-problem-is-being-called-chinas-good-will-hunting
Archae
(46,299 posts)This is pure bullshit from China's official "news" agency.
edhopper
(33,467 posts)that doesn't even exist in the lab right now, and they put it in space?
Quantum computing is still just theoretical, in the development stage.
Shandris
(3,447 posts)Just two days ago. Neat stuff!
that is very cool.
Second, that confirms my point, this is very new, experimental technology. A practical, working quantum computer is years away.
No way it is ready for a communication satellite. Especially given the time lag between design and building a satellite.
Shandris
(3,447 posts)...pretty common knowledge that (at least our) military runs about 30 years ahead of the public. So if we're just hearing about it...
TBH, I actually heard WE had them well over two years ago. But then again, I didn't put much stock in that one, rumors being what they are and all.
It's just enough to make me curious, knowing there's no REAL way to know. Maddening, neh?
edhopper
(33,467 posts)truck size fusion reactor.
bananas
(27,509 posts)This has nothing to do with quantum computing.
Quantum communication has been in use for several years with fiber optics.
And China did a proof-of-concept several years ago with a German satellite.
And quantum teleportation over long distances has been done in Europe.
Some reading for you:
June 2013: China Reveals First Space-Based Quantum Communications Experiment
... they were able to detect the returning photons at a rate of about 600 per second. These results are sufficient to set up an unconditionally secure QKD link between satellite and earth, technically, they add.
... However, this experiment raises something of a puzzle. The Chinese team say they used a German satellite called CHAMP for their experiment. This was launched in 2000 and its mission was to make a precise gravity map of the Earth by bouncing lasers off it.
Whats curious about the Chinese announcement is that CHAMP deorbited in 2010. So a curious question is when the team did this work. Clearly, the team has been sitting on this result for some time. ...
October 2014: Quantum Science Satellite - Chinese Journal of Space Science
(describes the science goals of the satellite)
Quantum Science Satellite - Chinese Journal of Space Science
http://www.cjss.ac.cn/EN/abstract/abstract2066.shtml
Chinese Journal of Space Science 2014, Vol. 34 Issue (5): 547-549 DOI: 10.11728/cjss2014.05.547
Abstract
Quantum Science Satellite is one of the first five space science missions, slated for launch in the framework of Chinese Academy of Sciences (CAS) Strategic Priority Research Program on space science. The project aims to establish a space platform with long-distance satellite and ground quantum channel, and carry out a series of tests about fundamental quantum principles and protocols in space-based large scale. The satellite will be launched at Jiuquan and on orbit for 2 years.
<snip>
Scientific Objectives
The scientific goals are to implement a series of science
missions between Quantum Science Satellite and
quantum communication ground stations. The major
tasks are as follows.
(1) Quantum Key Distribution from Satellite to Ground
<snip>
(2) Global Scale Quantum Communication Network
<snip>
(3) Quantum Entanglement Distribution from Satellite to Two Ground Stations
<snip>
(4) Quantum Teleportation from Ground to Satellite
<snip>
According to the plan, the satellites prototype for
qualification test will be assembled in June 2014, and
the verification activities will be finished by the time
of August 2014. At the end of June 2015, building
and testing activities of the satellite will be finished.
September 2012: Physicists break quantum teleportation distance
143 km: Physicists break quantum teleportation distance
A list of relevant articles:
Jun 11, 2014, 09:40 AM
bananas (27,258 posts)
44. Here's a few articles
Quantum communications system was used at Party Congress in Beijing
http://www.scmp.com/news/china/article/1265416/quantum-communications-system-was-used-party-congress-beijing
World Cup security uses quantum encryption to thwart hackers
http://www.homelandsecuritynewswire.com/world-cup-security-uses-quantum-encryption-thwart-hackers
China Plans Quantum Science Satellite in 2016
http://www.democraticunderground.com/1014505402
Commercial Quantum Cryptography Satellites Coming
Canadian team wants to take the cheap microsatellite route to uncrackable global communications
http://spectrum.ieee.org/aerospace/satellites/commercial-quantum-cryptography-satellites-coming
World's First Quantum Cryptography Network Developed in China
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=228x51793
Battelle Installs First Commercial Quantum Key Distribution Protected Network in U.S.
http://www.battelle.org/media/press-releases/-first-commercial-quantum-key-distribution-protected-network-in-u.s
Several companies offer commercial quantum key distribition:
<snip>
The distance record for free space QKD is 144 km between two of the Canary Islands, achieved by a European collaboration using entangled photons (the Ekert scheme) in 2006,[13] and using BB84 enhanced with decoy states[14] in 2007.[15] The experiments suggest transmission to satellites is possible, due to the lower atmospheric density at higher altitudes.
<snip>
As of August 2015 the longest distance for optical fiber (307 km) was achieved by GAP, University of Geneva and Corning Incorporated.
<snip>
There are currently four companies offering commercial quantum key distribution systems; ID Quantique (Geneva), MagiQ Technologies (New York), QuintessenceLabs (Australia) and SeQureNet (Paris). Several other companies also have active research programmes, including Toshiba, HP, IBM, Mitsubishi, NEC and NTT (See External links for direct research links).
In 2004, the world's first bank transfer using quantum key distribution was carried in Vienna, Austria.[16] Quantum encryption technology provided by the Swiss company Id Quantique was used in the Swiss canton (state) of Geneva to transmit ballot results to the capital in the national election occurring on 21 October 2007.[17] In 2013, Battelle Memorial Institute installed a QKD system built by ID Quantique between their main campus in Columbus, Ohio and their manufacturing facility in nearby Dublin.[18] Field tests of Tokyo QKD network have been underway for some time.[19]
bananas
(27,509 posts)edhopper
(33,467 posts)let facts get in the way of me spouting off.
if I want to give a cursory reading of an article and then mouth off, it is my Gaia given right as an American!
rug
(82,333 posts)Bill USA
(6,436 posts)Jeffersons Ghost
(15,235 posts)Typical Chinese propaganda. Xinhua, China's state news agency is the biggest laugh of all! This Chinese news agency failed to report that the brother-in-law of President Xi of China broke several Chinese laws by hiding a massive fortune in Central America, according to The Panama Papers. As Xi continues to arrest wealthy people in China and seize ALL their family assets, he refuses to arrest his brother-in-law for corruption.
While China did not report launching a satellite until 1970, The USSR and USA had both launched advanced military and scientific satellites by 1958.
The Chinese artist, who created this picture was tortured to death, although Chinese media claims he was simply detained.
anarch
(6,535 posts)no, really, it's his birthday today.
burrowowl
(17,632 posts)Co-operation between China and Europe.
DFW
(54,268 posts)[URL=.html][IMG][/IMG][/URL]
0rganism
(23,920 posts)mmm... in the event they succeed, i for one welcome our new Ancient Overlords.
Codeine
(25,586 posts)The stars are right.
Warren DeMontague
(80,708 posts)tymorial
(3,433 posts)Once they put the satellite in orbit they'll never be able to find it again. It'll never be where they predicted it to be.
mainer
(12,017 posts)http://fortune.com/2016/08/16/china-quantum-satellite-launch/
http://www.space.com/33760-china-launches-quantum-communications-satellite.html
http://www.nature.com/news/chinese-satellite-is-one-giant-step-for-the-quantum-internet-1.20329
get the red out
(13,460 posts)In the interest of science of course.