Evidence of Holographic Universe:

Discussion in 'Astronomy, Exobiology, & Cosmology' started by paddoboy, Jan 30, 2017.

  1. paddoboy Valued Senior Member

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    Study reveals substantial evidence of holographic universe
    January 30, 2017

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    A sketch of the timeline of the holographic Universe. Time runs from left to right. The far left denotes the holographic phase and the image is blurry because space and time are not yet well defined. At the end of this phase (denoted by the black fluctuating ellipse) the Universe enters a geometric phase, which can now be described by Einstein's equations. The cosmic microwave background was emitted about 375,000 years later. Patterns imprinted in it carry information about the very early Universe and seed the development of structures of stars and galaxies in the late time Universe (far right). Credit: Paul McFadden
    A UK, Canadian and Italian study has provided what researchers believe is the first observational evidence that our universe could be a vast and complex hologram.

    Theoretical physicists and astrophysicists, investigating irregularities in the cosmic microwave background (the 'afterglow' of the Big Bang), have found there is substantial evidence supporting a holographic explanation of the universe—in fact, as much as there is for the traditional explanation of these irregularities using the theory of cosmic inflation.

    The researchers, from the University of Southampton (UK), University of Waterloo (Canada), Perimeter Institute (Canada), INFN, Lecce (Italy) and the University of Salento (Italy), have published findings in the journal Physical Review Letters.



    Read more at: https://phys.org/news/2017-01-reveals-substantial-evidence-holographic-universe.html#jCp
     
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  3. paddoboy Valued Senior Member

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    http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.041301

    From Planck Data to Planck Era: Observational Tests of Holographic Cosmology:

    ABSTRACT
    We test a class of holographic models for the very early Universe against cosmological observations and find that they are competitive to the standard cold dark matter model with a cosmological constant (ΛCDM) of cosmology. These models are based on three-dimensional perturbative superrenormalizable quantum field theory (QFT), and, while they predict a different power spectrum from the standard power law used in ΛCDM, they still provide an excellent fit to the data (within their regime of validity). By comparing the Bayesian evidence for the models, we find that ΛCDM does a better job globally, while the holographic models provide a (marginally) better fit to the data without very low multipoles (i.e., l≲30), where the QFT becomes nonperturbative. Observations can be used to exclude some QFT models, while we also find models satisfying all phenomenological constraints: The data rule out the dual theory being a Yang-Mills theory coupled to fermions only but allow for a Yang-Mills theory coupled to nonminimal scalars with quartic interactions. Lattice simulations of 3D QFTs can provide nonperturbative predictions for large-angle statistics of the cosmic microwave background and potentially explain its apparent anomalies.


     
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  5. paddoboy Valued Senior Member

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    Never been attracted to any "Holographic Universe" hypothetical:
    It just seems to convey the wrong image and conclusions, to me at least.
     
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  7. geordief Registered Senior Member

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    Is the idea that the surface which contains all the information is dynamic ? Does it change with time ? Might there exist anything "outside" this surface ? Other such surfaces? Could they interact?
     

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