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Firstly, the Holometer is either inadequate [0] or discredited [1], take your pick. Hogan invents a theory, then invents the apparatus that 'tests' it, but ther
by mikhailfranco 10y ago
Firstly, the Holometer is either inadequate [0] or discredited [1], take your pick. Hogan invents a theory, then invents the apparatus that 'tests' it, but there is no way a couple of 40m interferometers are probing the Planck scale. The paper [2] quotes 10^-18 m for a single interferometer, and implies 10^-23 m for both, which is about 12 orders of magnitude above the Planck scale.
Secondly, quantized space-time is a slightly separate issue from the Holographic Principle [3], you can have discreteness without holography, but there has been huge theoretical progress in these subjects in the last 5-10 years and a revolution is underway - see ER=EPR and all that [4], if you need more physics excitement.
[0] http://www.sciencemag.org/news/2015/12/controversial-experiment-sees-no-evidence-universe-hologram http://www.sciencemag.org/news/2015/12/controversial-experim...
[1] http://backreaction.blogspot.com/2015/12/what-fermilabs-holometer-experiment.html http://backreaction.blogspot.com/2015/12/what-fermilabs-holo...
[2] http://arxiv.org/abs/1512.01216 http://arxiv.org/abs/1512.01216
[3] http://en.wikipedia.org/wiki/Holographic_principle http://en.wikipedia.org/wiki/Holographic_principle
[4] http://www.nature.com/news/the-quantum-source-of-space-time-1.18797 http://www.nature.com/news/the-quantum-source-of-space-time-...