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B Does information travel faster than light

  1. Jan 13, 2017 #1

    wolram

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    https://www.sciencedaily.com/releases/2012/10/121028142217.htm

    Usable or not this seems to be a spooky statement can this 10000 be falsified?.

    Experiments have already shown that if you want to invoke signals to explain things, the signals would have to be travelling faster than light -- more than 10,000 times the speed of light, in fact. To those who know that Einstein's relativity sets the speed of light as a universal speed limit, the idea of signals travelling 10,000 times as fast as light already sets alarm bells ringing. However, physicists have a get out: such signals might stay as 'hidden influences' -- useable for nothing, and thus not violating relativity. Only if the signals can be harnessed for faster-than-light communication do they openly contradict relativity.
     
    Last edited: Jan 13, 2017
  2. jcsd
  3. Jan 13, 2017 #2
    Look at https://www.physicsforums.com/threa...-bohmian-mechanics.899967/page-2#post-5664597 from a parallel thread, where the same choice that the article you linked presents in a confusingly hyped mode is spelled out. Mainstream science in the form of QFT has already chosen to discard FTL communication and preserve microcausality, and what is sensationalistically described in the article as "that quantum correlations somehow arise from outside spacetime, in the sense that no story in space and time can describe them" is formalized with this microcausality that has spacelike separated operators commute and therefore being causally independent.
     
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