From spacetime foam to holographic foam cosmology

Abstract

Due to quantum fluctuations, spacetime is foamy on small scales. For maximum spatial resolution of the geometry of spacetime, the holographic model of spacetime foam stipulates that the uncertainty or fluctuation of distance $l$ is given, on the average, by $(l{l}_P^2{)}^{1/3}$ where $l_P$ is the Planck length. Applied to cosmology, it predicts that the cosmic energy is of critical density and the cosmic entropy is the maximum allowed by the holographic principle. In addition, it requires the existence of unconventional (dark) energy/matter and accelerating cosmic expansion in the present era. We will argue that a holographic foam cosmology of this type has the potential to become a full fledged competitor (with distinct testable consequences) for scalar driven inflation.

8 pages, TeX; dedicated to Rafael Sorkin

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Cited by in corpus (29)

• A Dark Energy Model Characterized by the Age of the Universe
• A New Model of Agegraphic Dark Energy
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• Instability of agegraphic dark energy models
• Interacting Agegraphic Dark Energy
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• Holographic Scalar Fields Models of Dark Energy
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• A model of interacting holographic dark energy at the Ricci's scale
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• Holographic Dark Energy Characterized by the Total Comoving Horizon and Insights to Cosmological Constant and Coincidence Problem
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• Holographic dark energy at the Ricci scale
• About the Minimal Resolution of Space-Time Grains in Experimental Quantum Gravity
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