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Quantum Entangled Emitter and Receiver

  1. Nov 7, 2013 #1
    Hello fellow science enthusiasts.
    The other day I was thinking of a device for instantaneous transfer of data. You would have two entangled particles (or any even number but two just for simplicity), then you would "put" each one in two devices. An input is needed. For example a simple message in binary saying "Test 123". The message would be indeed made up of ones and zeros. That would be then recognised by another device as each 1 or 0 is an instruction. For example a one would turn on a magnetic field to rotate the particle so it is pointing up and a 0 pointing down with a neutral state or rest position being pointing to the middle. Now I know up, down and middle are not specific directions but just imagine them as relative ones. If I am correct that would mean the other particle would experience the same effect and the up or down will be detected by a device with exact recognition of what each state is and it would translated into ones and zeros. That would then be put together to form a bunch of ones and zeros which would go into a output of some sort which will then translate the binary into "Test 123". This is just to begin with, you could speed up the process with more data being sent to maybe even form a picture and later on, a live video feed.

    Now I know this is all just something I thought about which will at least, have some problems to begin with. To start, I don't even know if it's actually possible to use a small magnetic field on an entangled particle without disrupting the entanglement, in other words, breaking the bond. I just wanted to know if it's possible. If it was, it could mean a communication latency would be very little (even on an interstellar or intergalactic scale)

    Many thanks,
    A Science Enthusiast
  2. jcsd
  3. Nov 7, 2013 #2


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    Staff: Mentor

    Sorry - entanglement doesn't work that way.

    No matter what you do to your particle, if the other guy makes either a left-right or an up-down measurement, he'll get a random bit.

    There's no way of even discovering that any entanglement was going on until you and the other guy get together and compare notes. Then you'll discover that, for every particle pair, if you had both measured up-down or you both had measured left-right you always got opposite answers; if one of you measured left-right and the other up-down the results were completely uncorrelated.
  4. Nov 8, 2013 #3
    Thanks for clearing up the confusion :)
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