enigma# Posted September 7, 2012 Share Posted September 7, 2012 Physicists at the University of Vienna and the Austrian Academy of Sciences have achieved quantum teleportation over a record distance of 143 km. The experiment is a major step towards satellite-based quantum communication. The results have now been published in "Nature" (Advance Online Publication/AOP). An international team led by the Austrian physicist Anton Zeilinger has successfully transmitted quantum states between the two Canary Islands of La Palma and Tenerife, over a distance of 143 km. The previous record, set by researchers in China just a few months ago, was 97 km. Breaking the distance record wasn’t the scientists’ primary goal though. This experiment provides the basis for a worldwide information network, in which quantum mechanical effects enable the exchange of messages with greater security, and allow certain calculations to be performed more efficiently than with conventional technologies. In such a future ‘quantum internet’, quantum teleportation will be a key protocol for the transmission of information between quantum computers. {...} Straight from: http://medienportal.univie.ac.at/presse/aktuelle-pressemeldungen/detailansicht/artikel/quantum-physics-at-a-distance/ Tldr, we shot some photons across a huge distance that were properly communicated to the receiving party. Gives us a good idea on other futures in crytography and internet access Thoughts? First thing that comes to mind for me: Quantum crypotography >.< Quote Link to comment Share on other sites More sharing options...
LazaHorse Posted September 7, 2012 Share Posted September 7, 2012 For those who read "teleportation" and freak out thinking of Back to the Future, it's nowhere near that magnitude. Photons are by definition massless, so their "teleportation" is made possible as their transfer does not require the immediate application of energy (and by definition dissipation of energy). Anything with mass requires energy to move (basic physics), so to begin teleporting people, objects, or weapons is still considered improbable (if not impossible). What it DOES mean (as Enigma said) is that we are one step closer to things like quantum computation (at a mass-produced level), quantum cryptography (at a nation-to-nation level), and quantum communication. It's an amazing achievement, but one that probably won't see any practical use for at least ten or so years. Our computers right now can't really handle the taxing that quantum cryptography puts on a system (quantum computers cost multiple millions even billions of dollars... Brazilians if you're President Bush). Still... it remains a possibility. Quote Link to comment Share on other sites More sharing options...
I Love Lamp Posted September 7, 2012 Share Posted September 7, 2012 WTB Ansible Quote Link to comment Share on other sites More sharing options...
Tengauge12 Posted September 7, 2012 Share Posted September 7, 2012 Quantum Leap was a great show.. I don't know much about this, but I do know alot about Astrology, if you ever decide to talk about that. Quote Link to comment Share on other sites More sharing options...
Cookie Posted September 7, 2012 Share Posted September 7, 2012 (edited) For those who read "teleportation" and freak out thinking of Back to the Future teleportation =/ time travel, Which is technically possible. but I do know alot about Astrology astrology!? What, why? Edited September 8, 2012 by Cookie Quote Link to comment Share on other sites More sharing options...
Bonbon Posted September 8, 2012 Share Posted September 8, 2012 Dat shit's craaaaaaaaaaaay Quote Link to comment Share on other sites More sharing options...
JJK Posted September 8, 2012 Share Posted September 8, 2012 enders game was the shit Quote Link to comment Share on other sites More sharing options...
Nipple Posted September 8, 2012 Share Posted September 8, 2012 in response to laz's post, i thought we have already literally teleported atoms before? Quote Link to comment Share on other sites More sharing options...
Tommo Posted September 8, 2012 Share Posted September 8, 2012 That's a pretty interesting read. Quote Link to comment Share on other sites More sharing options...
LazaHorse Posted September 8, 2012 Share Posted September 8, 2012 in response to laz's post, i thought we have already literally teleported atoms before? We have rapidly moved atmos (and larger matter) from place to place (small distances). From what I've learned, teleportation is the process of decomposing something then making it re-appear somewhere else. That can't actually happen with things of mass (conservation of energy and mass), but for massless objects it is. Unless my definition of teleportation is wrong of course... then \o/. From what I learned last semester in Classical physics, that's what most physicists mean by "teleporting" something. I'll look around and see if I can find something like this that has been done before though. Quote Link to comment Share on other sites More sharing options...
Borritos Posted September 8, 2012 Share Posted September 8, 2012 We have rapidly moved atmos (and larger matter) from place to place (small distances). From what I've learned, teleportation is the process of decomposing something then making it re-appear somewhere else. That can't actually happen with things of mass (conservation of energy and mass), but for massless objects it is. Unless my definition of teleportation is wrong of course... then \o/. From what I learned last semester in Classical physics, that's what most physicists mean by "teleporting" something. I'll look around and see if I can find something like this that has been done before though. That sounds about right. And to advance this far in science at this point is pretty legit in my book. Quote Link to comment Share on other sites More sharing options...
Cookie Posted September 8, 2012 Share Posted September 8, 2012 That sounds about right. And to advance this far in science at this point is pretty legit in my book. classical physics is an undergrad class man. Quote Link to comment Share on other sites More sharing options...
Borritos Posted September 8, 2012 Share Posted September 8, 2012 classical physics is an undergrad class man. Was never really into school. Just getting back in the groove of things so its new to me lol. Stay in school kids. Quote Link to comment Share on other sites More sharing options...
Tengauge12 Posted September 8, 2012 Share Posted September 8, 2012 because I love Astrology. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.