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Quantum vacuum as origin of light speed?

  1. Mar 27, 2013 #1
  2. jcsd
  3. Mar 27, 2013 #2

    Bill_K

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    It's also here.
     
  4. Mar 27, 2013 #3
    abstract says "the propagation of a photon is a statistical process at scales much larger than the Planck scale. Therefore we expect its time of flight to fluctuate." How much statistical fluctuation (what % of c) do they predict?
     
  5. Mar 27, 2013 #4

    Bill_K

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    The link I quoted is to the complete paper, not just the abstract, so you can read it for yourself. They predict that the variance of the propagation time T for a photon over a distance L is σT ≈ 5 10-2 fs.m−1/2

    "We note that the fluctuations vary as the square root of the distance L of vacuum crossed by the photons and are a priori independent of the energy of the photons."
     
  6. Mar 27, 2013 #5

    ftr

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    So how does the theory match your post # 4 in this thread



    https://www.physicsforums.com/showthread.php?t=642675
     
  7. Mar 28, 2013 #6

    Bill_K

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    That other post was to correct a misunderstanding someone had about SI units.

    This theory is total crackpottery. According to an earlier paper by the same authors, their theory also does away with general relativity.
     
  8. Mar 28, 2013 #7

    Vanadium 50

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    I wouldn't necessarily say crackpottery, although I might agree with "fringe". It at least makes an attempt to be consistent with existing measurements.

    That said, I can't see how they can introduce a dispersion this large and have astronomical VLBI measurements work at all. HBT might also be a problem.
     
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