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Science & Technology

China has 'teleported' a photon in to orbit

By T.K. Randall
July 12, 2017 · Comment icon 30 comments

The beginnings of the quantum age. Image Credit: CC BY-SA 3.0 ESO/M. Kornmesser
In a world-first, China has succeeded in using quantum entanglement to send data to a satellite.
Working out of a base station in Tibet more than 4,500 meters above sea level, the team achieved the feat thanks to Micius - a tiny quantum-enabled satellite that was launched in to orbit last year.

The key to the project is a concept known as quantum entanglement, which involves pairs of entangled particles, each inextricably linked to the other even when they are apart.

This phenomenon, which Einstein referred to as "spooky action at a distance", means that changing the properties of one particle will result in a corresponding change in the other, even when the two entangled particles are located a large distance from one another.
Scientists had previously demonstrated the potential to 'teleport' data between two entangled particles in a laboratory, but now, the team in China has managed to achieve the same thing over a distance of up to 1,400 miles by beaming one half of an entangled pair up to the orbiting satellite.

Their success marks the first step towards the creation of an encrypted quantum network - a completely uncrackable form of communication.

One day, methods like these could even lead to the creation of a super-secure quantum Internet.

Source: smh.com.au | Comments (30)




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Recent comments on this story
Comment icon #21 Posted by brizink 7 years ago
So it needs a workaround. Think "quantum budging". Shot in the dark
Comment icon #22 Posted by Emma_Acid 7 years ago
I don't know what this means??   Reading when I'm supposed to be working
Comment icon #23 Posted by brizink 7 years ago
Budging would be something like using entangled particles to react to circumstance along spacetime without damaging the entanglement, but still be able to detect the change in the point b particle, this allowing the flow of data but without killing your medium per bit of data. It's just a theory, but then again so is gravity. Can be done. Magnetics has shown promise in a similar concept. Entanglement could be far more efficient. 
Comment icon #24 Posted by kartikg 7 years ago
Actually a few years ago an experiment was able to convert light into some particles  . 
Comment icon #25 Posted by Noteverythingisaconspiracy 7 years ago
I didn't say that photons aren't particles. I said that photons can't be used to make solid object, so if you could teleport photons it wouldn't help you to teleport a solid object.
Comment icon #26 Posted by taniwha 7 years ago
https://www.sciencealert.com/scientists-have-achieved-direct-counterfactual-quantum-communication-for-the-first-time Thoughts anyone?
Comment icon #27 Posted by Calibeliever 7 years ago
Fascinating. Phys.org has a good piece on it too.
Comment icon #28 Posted by kartikg 7 years ago
IIRC the experiment created particles from photon basically matter from light. 
Comment icon #29 Posted by kartikg 7 years ago
the link to the experiment  https://m.phys.org/news/2014-05-scientists-year-quest.html
Comment icon #30 Posted by Mr Supertypo 7 years ago
Thats truly amazing light into matter....holodeck . I know its not what the article states but one can dream right?  About quantum communication i see plenty of applications. Very nice indeed.


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