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Scientists teleport two different objects

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  • User profile image
    JohnAskew

    http://www.cnn.com/2006/TECH/science/10/04/teleportation.reut/index.html

    Good grief.

    "It is one step further because for the first time it involves teleportation between light and matter, two different objects. One is the carrier of information and the other one is the storage medium," Polzik explained in an interview on Wednesday.

    Quantum entanglement?

    I need a nap.

  • User profile image
    littleguru

    Holy... Damn... Wow! I'm astonished, I'm thrilled. Wow! I like it. It's really great. I have heard that people beamed stuff (just atoms) in Austria, but this is far better. Great *THUMBS UP* to the scientists.

  • User profile image
    littleguru

    Sven Groot wrote:
    And yes, the EPR bridge is in reality something completely different than what Sliders said it is.


    Cars are also exploding in Hollywood movies. You just touch them with the finger and they explode Big Smile

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    TommyCarlier

    Sliders... That series really rocked.

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    Sven Groot

    Ah, the good old Einstein-Podolsky-Rosen bridge allowing for instant (i.e. faster than light) quantum communication over any distance.

    The EPR paradox was designed by those three to prove that quantum mechanics was false, but instead it turned out to describe a real situation allowing us to do neat things like this.

    I've seen this done with photons before, but not with actual matter. Great stuff.

    And yes, the EPR bridge is in reality something completely different than what Sliders said it is. Smiley

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    Deactivated User

    Comment removed at user's request.

  • User profile image
    phreaks

    Sven Groot wrote:
    Ah, the good old Einstein-Podolsky-Rosen bridge allowing for instant (i.e. faster than light) quantum communication over any distance.

    The EPR paradox was designed by those three to prove that quantum mechanics was false, but instead it turned out to describe a real situation allowing us to do neat things like this.

    I've seen this done with photons before, but not with actual matter. Great stuff.

    And yes, the EPR bridge is in reality something completely different than what Sliders said it is.


    The photon accelerator expirement was amazing.
    Imagine being the first to successfully move something faster than light.

    This news is so much more exciting though.

    If others are interested in this stuff, but feel intimidated by the science, I can suggest a good physics book as a refresher (or even as a first step book). It's called 'physics demystified' and, it makes everything very easy to understand. After reading this book you should be able to read (and understand) many of the advanced physics books, articles and topics.




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    Angus

    That is cool. Thanks for the link.

    Angus Higgins

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    Ion Todirel

    TommyCarlier wrote:
    Sliders... That series really rocked.
    first seasons was great

  • User profile image
    jason818_25​3.33

    [quote
    Quantum entanglement?
    quote]

    I found the artical to be a bit generalized. Maybe there is some one on this forum who knows their physics and can shed some light on the topic.

    It is the understanding that a photon/(light) can be absorbed or even split when passed threw matter.  The photon can split into two seperate photons, each containing half the energy of the original photon. The resulting pair of photons is what constitues Quantum entanglement.

    First: As i understand, the two photons "comunicate" instintainiasly. (probably why they call them entangled i guess?). If a change is made to the polarization of one photon the others polarization changes instinaniously no matter where in the universe the second photon is. Einstein called this "spooky action at a distance"? If i am understanding it corectly, why does this phanomana of instontainiouse connection occure?

    Secondly:
    "The experiment involved for the first time a macroscopic atomic object containing thousands of billions of atoms" CNN.com

    In this artical on cnn, it is my understanding that it sais they were able to teleport/move  billions of atoms using a beam of light/a lazer/photons. it didnt exactly explain how that was done. How are atoms moved using Quantum entanglement? How is this done?

    thank you.


  • User profile image
    JohnAskew

    In brief, they found a way to scan out part of the information from an object A, which one wishes to teleport, while causing the remaining, unscanned, part of the information to pass, via the Einstein-Podolsky-Rosen effect, into another object C which hasfigure never been in contact with A. Later, by
     




























    applying to C a treatment depending on the scanned-out information, it is possible to maneuver C into exactly the same state as A was in before it was scanned. A itself is no longer in that state, having been thoroughly disrupted by the scanning, so what has been achieved is teleportation, not replication.


    What are the implications?

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    jason818_25​3.33

    "Objects"? are those photons or donuts being refferd to? Smiley

    still it seems the information on this subject on this thread seems to be a bit vage. If some one is truely making teleportation reality then how is it done? what are the details? as of now this drawing makes it look like theary.

    specificaly, the line in the drawing that sais send data. How is that part done? i have yet to find information to answere that question. how does it work? does any one have a good link or book that explains this part?

  • User profile image
    JohnAskew

    Check out the ibm link in the post with the drawing.

  • User profile image
    Richard.Hein

    jason818_253.33 wrote:
    
    specificaly, the line in the drawing that sais send data. How is that part done? i have yet to find information to answere that question. how does it work? does any one have a good link or book that explains this part?


    Ah! This is the greatest mystery in physics my friend!  Quantum Entanglement is what you need to Google for, and it will explain the unexplained fact that if you shoot a photon at two slits and track where they hit a wall behind it, you will see dots scattered with density localized around the area of the slits.  However, this only happens if you MEASURE which of the slits each photon chooses randomly through which to travel, but mysteriously, if you do not measure which of the paths each photon chooses to take, instead of a localized patterns you will see interference patterns, like waves, spread out from the slits, as if the photons were intefering which themselves.  Indeed, if you even only shoot one photon, you will still see an interference pattern. 

    This proves the wave particle duality of light.  Now WHY?  Hypothesis range from multiple universes (the light goes through both always, and the universe essentially splits into two), of which the one you experience is the one in which you finally make the measurement and cause the "wave collapse", thus making the probability wave function of the photon travelling through either slit go from 50/50 (look up Schrodinger's Cat), to 100% - the one you OBSERVE - hence your observation makes the photon travel through one slit.

    Even more mysteriously, the photon KNOWS before you measure it, that you WILL measure it.  Yes, it sounds nuts.  And it takes NO time for the photon to communicate - it happens instantanteously.  In addition, photons can be entangled, which means their internal states are somehow connected. 

    This is called spooky action at a distance" (Einstein), or Quantum Entanglement.  Entangled photons, or any boson (non-mass bearing particle) and indeed, fermions (or matter - mass bearing) can be made.  By splitting a photon, polarizing one, and witnessing that the other instantaneously changes to the opposite polarity, it has been proven and demonstrated for a long time.

    That line in the drawing is SpookyActionAtADistance.  It demonstrates one of the most counterintuitive aspects of what we understand experimentally, and provably about nature: 

    It's Non-Localized.  This means that a photon at point A, doesn't just have to be at point A.  It means that things that are close to each other can have a much an effect on things that are far away, as they do to other close objects.  It means that you can cross space without travelling through it.  It means that there might only be one photon, but that relative to us, it travels through time and space and makes what appear to be copies of itself, but are not copies, they are actually the same photon.

    Imagine if you travelled back in time 1 second at time t (a boson, such as a photon can occupy the same spacetime as another boson, but a fermion (matter) can't occupy the same spacetime as another fermion, so you better move a bit in space too).  Eventually you would fill all of space back to the beginning of time, if it exists.  There are a couple neat tricks we can play with this, so let t be the start time, and A-Z:

    t-0 -> y(ou)
    t-1 -> 2*y
    t-2 -> 4*y
    t-3 -> 8*y
    t-n -> y * 2^n

    So, it's exponential growth, if a photon travels back in time.  The cool thing about photons, is that their states can be entangled with one another as if they are the same thing, even through (apparently, or in theory) time.  Now, interestingly, going forward in time we get something resembling real particle physics that we can test, just go backwards, and imagine what would happen if you were the photon:

    At t-n there are infinitely many of you, all together in one point of energy, possibly infinite energy.  As you move forward in spacetime more and more of you seem to break off shooting in random or not so random directions, the faster you travel back to t=0.  Eventually back at t-1 there will be two of you, YouA and YouB all alone again, then you will watch as YouB pushes himself off into spacetime with his "legs" made up of fermions that were once photons, but now their energy has been converted into mass, by interacting with spacetime itself. 

    Particles appear and dissappear and annilliate each other and pop into and out of existance at short intervals.  Bosons don't "feel" time if they are pure energy - relatively proves this, and hence the maximum speed of light.  At the speed of light, ALL of the energy of a particle is "pushing" it through space, and none of it through relative time - to the boson, it would feel like time travel - ironically, it is moving "outside" of time.  That's why you can't catch light; the faster you travel through space to catch a photon, the more time relative to you slows down, and so to you the photon will always move at the same speed in a vacuum. 

    This is another great mystery, and trying to explain relativity as well is too much for me, but I'll BET that it's because of entanglement, and we're always producing the frame of reference by our own observation - essentially being an observer collapses our own probability function and gives us mass.  If we convert all our mass into energy, we can no longer collapse the probability wave, and so time crawls to a halt - the probability of change of that which was observed approaches 0.  If light travels at c, then when we cease observing and the state does not change relative to us, instead it is "frozen in time".  But only to the one observer.

    Probability of Change of State ~= 1/ Relative Velocity of Observer, hmmm, maybe.  Maybe it's bed time.  Cool

    That was fun.

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    jolson88

    In my short, active, time here on Channel 9, that was the best... post/reply... ever Smiley!!! You truly rock Richard!

    Man, that makes me want to go out and buy that physics book mentioned earlier in the thread real quick-like Smiley.

    The geek in me just weeped with joy reading that one Tongue Out.

  • User profile image
    mawcc

    littleguru wrote:
    Holy... Damn... Wow! I'm astonished, I'm thrilled. Wow! I like it. It's really great. I have heard that people beamed stuff (just atoms) in Austria, but this is far better. Great *THUMBS UP* to the scientists.


    Several years ago, physicists Anton Zeilinger and his team from the university of Innsbruck/Austria (my hometown) was the first one to do quantum teleportation. That's probably the reason why the story of the original Half-Life game mentioned that Gordon Freeman was educated at the university of Innsbruck.

  • User profile image
    Sourcecode

    JasonOlson wrote:
    In my short, active, time here on Channel 9, that was the best... post/reply... ever !!! You truly rock Richard!

    Man, that makes me want to go out and buy that physics book mentioned earlier in the thread real quick-like .

    The geek in me just weeped with joy reading that one .


    I agree.

    +10 insightful Richard !!

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    AndyC

    JasonOlson wrote:
    In my short, active, time here on Channel 9, that was the best... post/reply... ever !!! You truly rock Richard!



    Hehe, I know what you mean. I don't know what Richard means, because Physics makes my brain ache, but I do know that I'm impressed. Smiley

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