Author Topic: Teleportation  (Read 4109 times)

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Offline raw-al

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Teleportation
« on: May 17, 2012, 06:05:45 am »
Look out Star Trek. Here comes the future and the Chinese are leading the way.
Anyone know about this?

Articles on Quantum Entanglement:

                                        Chinese engineers have broken the record for quantum teleportation by successfully pairing particles over a distance of 97km.
             This process does not involve the same physical object  disappearing and reappearing in a new location, but rather "quantum  entanglement", whereby two particles act as one system despite being two  seperate entitites.
             Essentially, a photon transmits its quantum state to another photon, which becomes a clone of the original.
                               The real-world application of this research is the  potential for instant data transfers. The data doesn't travel through  physical space, and therefore  is much harder to be hacked or  intercepted.
             Experts believe this will  be an invaluable way for governments to transmit classified information  in the future.
             "Our result represents an important step towards a global quantum network," *says the paper* (http://arxiv.org/abs/1205.2024) published by researchers from the University of Science and Technology of China in Shanghai.
             Scientists have long struggled to harness the power of  quantum entanglement in the lab. The paired particles, known as  'qubits', can easily become untangled due to disturbences such as air turbulence, and this risk increases over distance.
             But this group of engineers claim to have overcome these  challenges, using a 1.3 watt laser to ensure the beam connecting the  twin photons stays on target.
             Using this technique, the team was able to "teleport"  more than 1100 photons across a lake in China, smashing the previous  record of 16km, which was set by a different group of Chinese researchers in 2010.
             While full-scale teleportation of humans in the style of Star Trek may be some way off, this team of engineers already has its sights set on satellite-based cryptography.
             "Our results show that even with high-loss ground to  satellite uplink channels, quantum teleportation can be realised," says  the paper.
             This procedure could provide super-secure communications all around the world.

Read more: http://www.smh.com.au/technology/sci-tech/scientists-shatter-quantum-teleportation-record-20120516-1ypxh.html#ixzz1v4FcqJHQ
Cheers
Al

Offline Dorothy

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Re: Teleportation
« Reply #1 on: May 17, 2012, 06:48:25 am »
Great - another thing we can f@#$ck each other and the planet with?

A little jaded and cynical am I? Yup.

Offline gc

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Re: Teleportation
« Reply #2 on: May 17, 2012, 07:56:40 am »
Actual teleportation involves the destruction of the original prior to reconstitution in another place. Not for me.. that new clone might look like me, act like me, have my memories, etc., but it is definitely not me....

This is sub-space communication, anyway. Cool concept, but I'd still rather just spend my time under the trees!
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Offline Dorothy

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Re: Teleportation
« Reply #3 on: May 17, 2012, 08:45:11 am »
With this kind of thing going on, I'm might be spending my time hiding under my bed! ;)

Offline TylerDurden

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Re: Teleportation
« Reply #4 on: May 17, 2012, 11:52:43 am »
It's been pointed out elsewhere that quantum entanglement will never be able to transmit information.
"During the last campaign I knew what was happening. You know, they mocked me for my foreign policy and they laughed at my monetary policy. No more. No more.
" Ron Paul.

CitrusHigh

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Re: Teleportation
« Reply #5 on: May 17, 2012, 12:04:59 pm »
The funny thing about 'never' though Ty, is that it often turns out to be right around the corner. ie flight, space travel, communication across great distances instantly...

I think the last time I heard about this was many years ago and they were shooting stuff around the great lakes?  But quantum theory just blows my mind, it all fascinates the hell out of me!

Offline intrigued

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Re: Teleportation
« Reply #6 on: May 17, 2012, 08:07:50 pm »
For your consideration:
http://xkcd.com/465/

 

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