Scientists Achieve On-Demand Quantum Teleportation For The First Time
Last edited Thu Aug 15, 2013, 03:03 AM - Edit history (1)
Source: Popular Science
Quantum teleportation has taken another step forward, thanks to two complimentary experiments, one from ETH Zurich and one from the University of Tokyo. The researchers have demonstrated the most reliable yet version of quantum teleportation--what Nature is calling "quantum teleportation on demand."
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Quantum teleportation has some pretty significant implications for communications; it works in a way not that dissimilar from the PGP-secured email we outlined here, except there's literally no physical link between the sender and receiver. (Read more about the implications for communications in Rebecca Boyle's excellent explainer.)
In the new experiments, conducted at the 100-micrometer scale and at temperatures of around 20 millikelvins, "Alice" and "Bob" from the example above are separated by about 5 mm. The University of Tokyo experiment managed to induce entanglement deterministically, which had only been done before at distances about 1,000 times smaller. And those previous experiments had only managed to do so reliably about 1 percent of the time, compared to this experiment, which teleported a qubit about 40 percent of the time (and reproduced it on the other end with about an 88 percent accuracy). So this is a huge leap forward!
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Read more: http://www.popsci.com/science/article/2013-08/researchers-perform-reliable-demand-quantum-teleportation-first-time
bananas
(27,509 posts)Teleportation: Behind the Science of Quantum Computing
Researchers were able to reliably teleport information between quantum bits.
Melody Kramer
National Geographic
Published August 14, 2013
It might seem like something straight from the Star Trek universe, but two new research experimentsone involving a photon and the other involving a super-conducting circuithave successfully demonstrated the teleportation of quantum bits.
If that sounds like gobbledygook, don't worry. We got in touch with one of the researchers, physicist Andreas Wallraff, of the Quantum Device Lab at the Swiss Federal Institute of Technology Zurich, to explain how his team and a team based at the University of Tokyo were able to reliably teleport quantum states from one place to another.
People have done this before but it hasn't necessarily been reliable. The new complementary research, which comes out in Nature today, is reliableand therefore may have widespread applications in computing and cryptography.
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bananas
(27,509 posts)Teleported by electronic circuit
ETH-physicists 'beam' information
ETH-researchers cannot "beam" objects or humans of flesh and blood through space yet, a feat sometimes alluded to in science fiction movies. They managed, however, to teleport information from A to B for the first time in an electronic circuit, similar to a computer chip.
Physicists at ETH Zurich have for the first time successfully teleported information in a so-called solid state system. The researchers did it by using a device similar to a conventional computer chip. The essential difference to a usual computer chip is that the information is not stored and processed based on the laws of classical physics, but on those of quantum physics. In a study, which is published in the current issue of the scientific journal Nature, the researchers were able to teleport information across a distance of about six millimeters, from one corner of a chip to the opposite one. This was shown to be possible without transporting the physical object carrying the information itself from the sender's to the receiver's corner.
"Usually, in telecommunication information is transmitted by electromagnetic pulses. In mobile communications, for example, microwave pulses are used, while in fiber connections it is optical pulses," explains Andreas Wallraff, Professor at the Department of Physics and head of the study. In contrast, quantum teleportation does not transport the information carrier itself, but only the information. This is possible due to the quantum mechanical properties of the system, in particular the entanglement established between the sender and the receiver. For non-physicists, entanglement constitutes a "magic" link between the two parties which exploits the laws of quantum physics.
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bananas
(27,509 posts)Deterministic quantum teleportation of photonic quantum bits by a hybrid technique
http://www.nature.com/nature/journal/v500/n7462/full/nature12366.html
Deterministic quantum teleportation with feed-forward in a solid state system
http://www.nature.com/nature/journal/v500/n7462/full/nature12422.html
branford
(4,462 posts)Damn those early morning cartoons and my unrealistic expectations of the future!
I guess I'll just have to settle for boring old quantum teleportation.
Scootaloo
(25,699 posts)Would you want those fucks to be operating in three dimensions?
THAT'S why you don't have rocket cars
cstanleytech
(26,080 posts)progressoid
(49,827 posts)And unlike the Star Trek version, ours can play Angry Birds!
Or try to find one of these on eBay:
AtheistCrusader
(33,982 posts)Press butan, arrive somewhere.
emsimon33
(3,128 posts)RKP5637
(67,032 posts)Lucinda
(31,170 posts)darkangel218
(13,985 posts)It would be freakish looking
tiny elvis
(979 posts)about as good as a GMO
darkangel218
(13,985 posts)Octafish
(55,745 posts)FailureToCommunicate
(13,989 posts)deformities that build up over multiple quantum trips...
HardTimes99
(2,049 posts)darkangel218
(13,985 posts)Right on!!
kentauros
(29,414 posts)Teb: And it exploded.
Jason Nesmith: Did I just hear that the animal turned inside out, and then it EXPLODED?
MrScorpio
(73,626 posts)DeSwiss
(27,137 posts)I have a list here of people I'd like to have teleported, immediately. Pick any place you want, it doesn't matter.
- The sun! Yes, sending them to the sun would do.....
K&R
burnodo
(2,017 posts)what the hell is a qubit?
Roland99
(53,342 posts)FiveGoodMen
(20,018 posts)Roland99
(53,342 posts)bananas
(27,509 posts)caseymoz
(5,763 posts)That's really the advance we need.
baldguy
(36,649 posts)pscot
(21,023 posts)The Koch brothers to the dark side of the moon.
Kablooie
(18,571 posts)RushIsRot
(4,016 posts)Javaman
(62,442 posts)PoliticAverse
(26,366 posts)RedCappedBandit
(5,514 posts)FrodosPet
(5,169 posts)jakeXT
(10,575 posts)BootinUp
(46,928 posts)live love laugh
(13,008 posts)I know what teleportation is but the rest...