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Quantum Telecloning Demonstrated?

Posted by ryuzaki0 on from the nosey-people dept.

An anonymous reader writes "According to Physorg eavesdropping on a quantum encrypted link can now be done without detection. From the article: 'The scientists have succeeded in making the first remote copies of beams of laser light, by combining quantum cloning with quantum teleportation into a single experimental step. Telecloning is more efficient than any combination of teleportation and local cloning because it relies on a new form of quantum entanglement - multipartite entanglement.' There is also a PDF of a related paper available here for background material."

14 of 195 comments (clear)

  1. I really dig this stuff... by Mark_Uplanguage · · Score: 5, Funny

    but I'm starting to get discouraged now that the already hard to grasp concepts of quantum mechanics are being infused with new more complicated forms. In the end I just want to know if we can teleport ourselves cause I'm tired of my f'ing commute.

    --
    "The difference between stupidity and genius is that genius has its limits." -- Albert Einstein
    1. Re:I really dig this stuff... by websaber · · Score: 4, Funny

      I remember the good old days when unbreakable encryption would stay unbreakable for 15 years. Now it's being broken before it is even released.

      --
      "A good friend will bail you out of jail. A true friend will be sitting next to you saying, 'damn....that was fun!'"
    2. Re:I really dig this stuff... by skoaldipper · · Score: 3, Funny
      Various scenarios and their solutions!

      By no means can two perfect copies of people be allowed to exist at the same time. It would rip apart the very fabric of space time as we know it. Therefore...

      1. Materialize two pugil sticks into the data stream, one for each person. Let them duke it out American Gladiator style. Loser gets fed into a tree shredder (provided by Soylent Green Technologies).

      2. Insert shark teeth and monkey tail DNA into the copy. He would be slightly different, and slightly cooler too. Men, otherwise wasteful empty beer cans now provide roughage as well. Ladies, flexible long second appendage for you. Think about it. 'Nuff said. Order preserved.

      3. Keep both the original and copy. #$%@ the Universe! Take a chance. The Colossal Crumple is merely 5 billion years away anyway...
      --
      I hope, when they die, cartoon characters have to answer for their sins.
  2. ahh yes by la+htris · · Score: 4, Funny

    so now we can listen in on quantum encrypted... wait a second... that doesn't exist yet.

    O well, must be the FBI getting an early start.

  3. Don't worry... by NotQuiteReal · · Score: 4, Funny
    Don't worry. No matter how hard you try to know anything, you'll still be dead soon, in the cosmic scheme of things.

    Have a nice day!

    --
    This issue is a bit more complicated than you think.
  4. Re:Heisenberg Uncertainty Principal? by Solder+Fumes · · Score: 3, Funny

    There IS NO Heisenburg Uncertainty Principal.

    Unless there is a school named Heisenburg Uncertainty, which would be cool.

  5. Can I get this in English? by ip_freely_2000 · · Score: 4, Funny

    Most of the time, I at least read TFA and make a dumb comment. This time, I read TFA and just felt dumb.

    Can some explain it and use real-world examples?

  6. As a physics major... by physicsphairy · · Score: 4, Funny

    As a physics major who has taken the time to look over the paper (read: barely skimmed--I am a lazy college student afterall), I would just like to offer my sincere opinion of "HUh?"

    I hope that will be helpful to other Slashdotters outside the field.

    --
    When things get complex, multiply by the complex conjugate.
  7. Comment removed by account_deleted · · Score: 3, Funny

    Comment removed based on user account deletion

  8. This is great by CatWrangler · · Score: 3, Funny

    Now I can be screwed in 32 different states. Kinda like Madonna.

    --

    ---
    When you come to a fork in the road, take it! --Yogi Berra--

  9. Re:Heisenberg Uncertainty Principal? by LiquidCoooled · · Score: 5, Funny

    There is such a place, but the lesson plan is a nightmare.
    Just as you think you know where your next lesson is you rush to get there to realise you've already missed it.

    Finding out if the lecturers are still alive after opening the classroom door is an entirely different and wholey worrying scenario unto itself.

    --
    liqbase :: faster than paper
  10. Cloning is immoral! by noidentity · · Score: 3, Funny

    We need to put a stop to this quantum cloning. It is immoral and wrong. Who knows where it might lead!

  11. Re:Heisenberg Uncertainty Principal? by Concerned+Onlooker · · Score: 4, Funny
    What ramifications does this have on the Heisenberg uncertainty principle?

    Obviously no one is quite sure.

    --
    http://www.rootstrikers.org/
  12. Ah, yes! by sonofagunn · · Score: 3, Funny

    I've been quantum telecloning via multipartite entanglement for years with my ultra-flux quasi capacitordangle jimmy-rigged to a quanto-farscope for multi-resolution ohmage. I built this with the latest in Lego technology!