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Evidence against planck scale?

  1. Feb 12, 2004 #1

    wolram

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    Gold Member

    arXiv:astro-ph/0301184 v3 27 Jan 2003

    The phase coherence of light from
    extragalactic sources direct evidence against
    first order Planck scale fluctuations in time
    and space

    extract.
    ----------------------------------------------------------------------
    Nevertheless, the obvious test bed for quantum gravity has indeed been
    provided by this Gpc distance source; the outcome is negative. No doubt
    one anticipates interesting propositions on how time and space may have
    contrived to leave behind not a trace of their quanta.Thus, from Michelson-
    Morley to extragalactic interferometry there remains no direct experimental
    evidence of any sort that compels us to abandon the structureless, etherless
    space-time advocated by Einstein. These points, together with in-depth
    discussions on how Planck scale phenomenology affects the appearance of the extragalactic sky, will be the subject matter of a paper by Ragazzoni and colleagues.
    --------------------------------------------------------------------
    has this paper by RAGAZZONI been published?
     
    Last edited: Feb 12, 2004
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