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Quantum Teleportation Achieved Over 16 km In China

Posted by timothy on from the can-feel-it-from-here dept.

Laxori666 writes "Scientists in China have succeeded in teleporting information between photons farther than ever before. They transported quantum information over a free space distance of 16 km (10 miles), much farther than the few hundred meters previously achieved, which brings us closer to transmitting information over long distances without the need for a traditional signal."

6 of 389 comments (clear)

  1. Lightspeed limited, not an ansible by Anonymous Coward · · Score: 5, Insightful

    Before you think this is awesome, this is not an ansible, information is transmitted at lightspeed only.

  2. Re:Progress.. by Pharmboy · · Score: 5, Insightful

    And once they get to an economic level that is closer to what the rest of us enjoy in the Western world, they will start caring. When you are hungry, you only want bread. When you are homeless, you only want shelter. When you have plenty to eat and a decent place to live, you want freedom.

    --
    Tequila: It's not just for breakfast anymore!
  3. I don't get it by Adrian+Lopez · · Score: 4, Insightful

    Isn't it impossible to transmit information via quantum entanglement? Since you cannot determine the state of an entangled particle, you cannot use it to "transmit" information until after you let the other end know, through conventional channels, what each possible state actually stands for. If that's the case, how exactly is this "quantum information transfer" supposed to work.

    --
    "In prison you just have to shut your eyes and take it. Here you have to shut your eyes and give it."
  4. Re:Obligatory by jo_ham · · Score: 5, Insightful

    Dare I say, if you don't find xkcd funny, the material might be somewhat... not aimed at you.

    To be delicate.

    Especially if you don't find *any* of them funny (although not all of them are designed to be humourous).

  5. Peer Reviewed by areusche · · Score: 5, Insightful

    http://science.slashdot.org/story/10/04/19/0132246/Chinas-Research-Ambitions-Hurt-By-Faked-Results

    This story alone makes me skeptical about any major scientific breakthroughs until someone can peer review the results.

    Congrats to the hardworking people on the project, however I will be applauding their work with less skepticism when I hear that MIT, Cornell, CMU, etc confirm the results.

  6. Re:Progress.. by Jah-Wren+Ryel · · Score: 4, Insightful

    When you have plenty to eat and a decent place to live, you want freedom.

    Or maybe you are just too scared of losing that prosperity that you decide not to rock the boat.

    --
    When information is power, privacy is freedom.