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Quantum Entanglement

Discussion in 'Science & Technology' started by Drone, Dec 5, 2011.

  1. ShiBDiB

    ShiBDiB

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    I mean its neat.. I just hope my taxes didnt pay for this
     
  2. Drone

    Drone

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    I found an interesting article where physicists theorize entangled quantum batteries. Here's a snippet:

    A dream come true? A perfect battery which doesn't lose any energy when it's transferred.
    By the way nature uses such "batteries" for ages. Photosynthesis achieves perfect energy transfer but nobody knows how. Ok ok ... theories are always easier than real life.
     
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  3. W1zzard

    W1zzard Administrator Staff Member

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    let's talk about the entangled sisters that you have sex with
     
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  4. NinkobEi

    NinkobEi

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    This thread is only for things that could actually happen. Two diamonds connected across trillions of miles? yep. two sisters you'd want to have sex with also that want to have sex with you? Not plausible. Literally impossible. :roll:
     
  5. W1zzard

    W1zzard Administrator Staff Member

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    the sisters is more probable than some funky battery.
     
  6. Drone

    Drone

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  7. Drone

    Drone

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    Tripartite entanglement is achieved:

    Nature.com
     
    Last edited: Mar 8, 2014
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  8. Drone

    Drone

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  9. Steevo

    Steevo

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    If you understood the principals of quantum entanglement you would realize how silly it is to ask that question on so many levels.

    First Quantum entanglement is the classical equal of having mirrored pairs, color is used as a way to think about a "state" of an object, not as an actual color, at quantum levels color does not exist as our perception of color is merely electromagnetic radiation of a specific wavelength exciting rods and cones and thus neurons, and this radiation is measured in nm. [​IMG]

    Whereas "If the size of the quantum dot is small enough that the quantum confinement effects dominate (typically less than 10 nm), the electronic and optical properties are highly tunable. Splitting of energy levels for small quantum dots due to the quantum confinement effect."

    http://en.wikipedia.org/wiki/Quantum_dot

    http://en.wikipedia.org/wiki/Quantum_entanglement

    Now imagine one photon that gets split into two lower state photons, each will represent half of the original state of the original photon. They are mirrored in the fact they each have half the energy of the original photon, and are equal but opposite. So if one is polarized in the Y space the other will be polarized in the X space, this follows the conservation laws. The reason this cannot lead to FTL communications is the same reason sweeping a laser across the surface of the moon from the earth does not cause your laser beam to travel faster than light.

    ............X
    A<
    ............Y

    A knows its state or entropy, the same amount of time passes for Y and X and the quantum superposition collapses when X or Y are measured, but neither can know the position of each other unless they originally knew the position of A, and neither knows the state of the other until one or both are measured which by measurement causes the unknown state to collapse, the only way to know all of this is to have the measurement taken at the exact same time in order to preserve data, which then brings us back to time being the great equalizing factor.
     
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  10. remixedcat

    remixedcat

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    Dude this. in. networking. now!!!
     
  11. Steevo

    Steevo

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    Huh?
     
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  12. Drone

    Drone

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    A team of researchers at Delft University in the Netherlands is reporting in a paper they have had published in the journal Science, that they have successfully used entanglement as a means of communication.

    Teleportation, is of course, a means of moving an object from one place to another without it having to travel between them. Thus far examples of it have only been seen in science fiction movies. The idea of moving information in similar fashion, however, has met with some, albeit limited success. The idea is to use the concept of entanglement of particles as a means of conveyance. It's supposed to work because of the strange interconnectedness of the two particles (whatever happens to one, automatically happens to the other, regardless of the distance between them). Such a property should allow then, for the exchange of information. If the spin state of one qubit is altered, then it should be automatically altered in the other qubit.

    Researchers trapped electrons in diamonds at very low temperatures and shot them with lasers, resulting in the creation of qubits. The diamonds serve as really tiny prisons, holding the electrons in place. Held as they were, the researchers were able to cause a spin state to exist and then to read it at both locations, which meant that information had been conveyed.

    [​IMG]

    http://phys.org/news/2014-05-team-accurately-teleported-quantum-ten.html
     
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  13. W1zzard

    W1zzard Administrator Staff Member

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    Misleading, no information is actually transmitted.

     
  14. Drone

    Drone

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    ^ lolz thanks for info, so they flopped?
     
  15. Steevo

    Steevo

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    I have had an idea, brewing in my noggin for quite awhile, after much reading and thinking. quarks are just pools of energy that are vibrating and moving through spacetime fabric, causing it to vibrate, and quantum entanglement is just when we managed to get enough quarks vibrating in spacetime, still bound by spacetime fabric if you will, much like two cans and a string can transmit energy at the speed of sound through the string, we are transmitting (*implied) data by merely observing the phase change from probability state and effect of spacetime vibrations that occur in the frequency domain that also effect the other entangled particle (same material) due to its resonant frequency, much in the same way I have to tune antennas to receive a specific frequency.
     
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  16. W1zzard

    W1zzard Administrator Staff Member

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    The authors at physorg flopped and wrote a headline that attracts internet people. The scientists certainly wrote it correctly in scientist speak in their abstract http://www.sciencemag.org/content/early/2014/05/28/science.1253512 .. normal humans which includes some internet authors read "teleportation" and think "star trek".

    what is the string between cans made of? are you proposing the ether ? http://www.physicsforums.com/showthread.php?t=304704
    and to the best of our knowledge, and matching all experimental data, quantum does not work like that, or any variation, that resembles classical mechanics

    the double slit experiment is a good, and simple, starting point to learn about the weirdness of quantum mechanics
     
  17. Drone

    Drone

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  18. W1zzard

    W1zzard Administrator Staff Member

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    yes, but it means something different for quantum scientists than for regular people
     
  19. Steevo

    Steevo

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    More of the idea that gluons/elementary particles are quantum foam, and the possibility of them existing as interactions of the dark matter that is holding our universe together where bubbles if you will meet and allow enough energy in one place to pop into existence, and only with the foam/spacetime can particles be real, and with this it allows for http://en.wikipedia.org/wiki/Inelastic_scattering to occur when energy is seemingly added or removed from a interaction.


    I get the double slit, twice as nice. And also the experiments carried out and the use of polarization filters to blind check it. But the idea of why and how and making it match with what I already know of signal propagation, pockets of denser air can cause signal timing changes, exactly why we use multiple frequencies with GPS, you can calculate ionosphere error by comparing the timing signature of one signal to the carrier phase offset of another due to atmospheric errors and reduce errors introduced by multiple magnitudes.
     
    Last edited: May 31, 2014
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