Spacetime foam: from entropy and holography to infinite statistics and nonlocality

Details Spacetime foam: from entropy and holography to infinite statistics and nonlocality Spacetime foam: from entropy and holography to infinite statistics and nonlocality

2008-01-18

arxiv.org/abs/0801.2962v2

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, LaTeX; added references, minor changes; invited review article for the special issue in Entropy (http://www.mdpi.org

Scientific paper

Due to quantum fluctuations, spacetime is foamy on small scales. The degree of foaminess is found to be consistent with holography, a principle prefigured in the physics of black hole entropy. It has bearing on the ultimate accuracies of clocks and measurements and the physics of quantum computation. Consistent with existing archived data on active galactic nuclei from the Hubble Space Telescope, the application of the holographic spacetime foam model to cosmology requires the existence of dark energy which, we argue, is composed of an enormous number of inert "particles" of extremely long wavelength. We suggest that these "particles" obey infinite statistics in which all representations of the particle permutation group can occur, and that the nonlocality present in systems obeying infinite statistics may be related to the nonlocality present in holographic theories. We also propose to detect spacetime foam by looking for halos in the images of distant quasars, and argue that it does not modify the GZK cutoff in the ultra-high energy cosmic ray spectrum and its contributions to time-of-flight differences of high energy gamma rays from distant GRB are too small to be detectable.

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