Quantum teleportation achieved over ten miles of free space - Polidicks

[url=http://arstechnica.com/science/news/2010/05/quantum-teleportation-achieved-over-ten-miles-of-free-space.ars]Source[/url] [quote]Quantum teleportation has achieved a new milestone or, should we say, a new ten-milestone: scientists have recently had success teleporting information between photons over a free space distance of nearly ten miles, an unprecedented length. The researchers who have accomplished this feat note that this brings us closer to communicating information without needing a traditional signal, and that the ten miles they have reached could span the distance between the surface of the earth and space. As we've explained before, "quantum teleportation" is quite different from how many people imagine teleportation to work. Rather than picking one thing up and placing it somewhere else, quantum teleportation involves entangling two things, like photons or ions, so their states are dependent on one another and each can be affected by the measurement of the other's state. When one of the items is sent a distance away, entanglement ensures that changing the state of one causes the other to change as well, allowing the teleportation of quantum information, if not matter. However, the distance particles can be from each other has been limited so far to a number of meters. Teleportation over distances of a few hundred meters has previously only been accomplished with the photons traveling in fiber channels to help preserve their state. In this particular experiment, researchers maximally entangled two photons using both spatial and polarization modes and sent the one with higher energy through a ten-mile-long free space channel. They found that the distant photon was still able to respond to changes in state of the photon they held onto even at this unprecedented distance. However, the long-distance teleportation of a photon is only a small step towards developing applications for the procedure. While photons are good at transmitting information, they are not as good as ions at allowing manipulation, an advancement we'd need for encryption. Researchers were also able to maintain the fidelity of the long-distance teleportation at 89 percent— decent enough for information, but still dangerous for the whole-body human teleportation that we're all looking forward to.[/quote] Pretty damn impressive, the lengths science is going to take us.

you can't use this for instant communication [url]http://en.wikipedia.org/wiki/No-communication_theorem[/url] [url]http://curious.astro.cornell.edu/question.php?number=612[/url] [url]http://everything2.com/title/Quantum+entanglement+and+faster+than+light+communication[/url]

omg this is so cool

Too many big words.

Yes. Yes. Yes Yes.

:science: I love reading about all these new strides science has made us :buddy:

[QUOTE=Rooster Assassin;22066796]:science: I love reading about all these new strides science has made us :buddy:[/QUOTE] This news story has nothing to do with trousers.

Oh my Sagan, fucking history!

Latency of 0ms anyone? :smug:

[QUOTE=BaconDioxide;22066738]Look. I want to know if instant communication is actually possible or not. Articles like this are usually really misleading. Can someone tell me?[/QUOTE] Yeah, but not feasible on any large level.

This is it. Human progress is such an amazing thing. *Single manly tear* If the rate at which we progress continues to increase, the future may be closer than we think.

[QUOTE=Quo Vadi;22066878]Yeah, but not feasible on any large level.[/QUOTE] But doesn't that violate special relativity? You know, since information is being transmitted faster than the speed of light and all...?

[QUOTE=Eudoxia;22066864]Oh my Sagan[/QUOTE] :geno:

[QUOTE=Eudoxia;22066891]This is it. Human progress is such an amazing thing. *Single manly tear* If the rate at which we progress continues to increase, the future may be closer than we think.[/QUOTE] What's that one equation of technological advancement which has been already broken like eight times in a few years?

I hear articles like this daily and nothing ever comes out of it.

Holy shit. I don't even understand quantum physics yet this sounds like it is a pretty big deal.

[QUOTE=BaconDioxide;22066895]But doesn't that violate special relativity? You know, since information is being transmitted faster than the speed of light and all...?[/QUOTE] It's not being TRANSMITTED faster than the speed of light. Yes, it's GETTING there, but it doesn't actually move in and of itself.

this is great

[QUOTE=leontodd;22066905]I hear articles like this daily and nothing ever comes out of it.[/QUOTE] Ho, no you don't. They might sound like this but this is p. big

Fuck. YES

[QUOTE=Quo Vadi;22066923]It's not being TRANSMITTED faster than the speed of light. Yes, it's GETTING there, but it doesn't actually move in and of itself.[/QUOTE] Hmm. Wikipedia still says it's impossible. I don't want to believe that though.

[QUOTE=BaconDioxide;22066738]Look. I want to know if instant communication is actually possible or not. Articles like this are usually really misleading. Can someone tell me?[/QUOTE] relatively instant, yes. we just have to find out how first

[QUOTE=BaconDioxide;22066972]Hmm. Wikipedia still says it's impossible. I don't want to believe that though.[/QUOTE] Wikipedia is probably outdated on the matter [editline]07:17PM[/editline] [QUOTE=Anteep1;22066979]relatively instant, yes. we just have to find out how first[/QUOTE] What? Do you even understand what you're talking about?

[QUOTE=Quo Vadi;22066923]It's not being TRANSMITTED faster than the speed of light. Yes, it's GETTING there, but it doesn't actually move in and of itself.[/QUOTE] Okay so it doesn't violate relativity because it doesn't travel FTL, it just gets teleported. What about Causality? You get see send information faster-than-light so... Oh wait I think I got it wrong. Bleh.

History in the fucking making

[QUOTE=Quo Vadi;22066903]What's that one equation of technological advancement which has been already broken like eight times in a few years?[/QUOTE] Don't know, Google reveals nothing.

They could make a helmet with some kind of electrodes that would read your mental state and transmit that instantaneously to someone far away, who'd receive it on their helmet. Eventually we could helmet a robot, send it to walk on a comet or something, and a networked group of scientists here could control with thought!

[QUOTE=cecilbdemodded;22067061]They could make a helmet with some kind of electrodes that would read your mental state and transmit that instantaneously to someone far away, who'd receive it on their helmet. Eventually we could helmet a robot, send it to walk on a comet or something, and a networked group of scientists here could control with thought![/QUOTE] Well, it's not really practical on a moving receiver yet

Instant communication would be awesome.

[QUOTE=RedBlade2021;22067089]Instant communication would be awesome.[/QUOTE] Instant communication is the holy fucking grail of space exploration, seriously.