A dark energy model characterized by the age of the Universe

By R. Cai. 2007

528 citations recorded by the source corpus.

Quantum mechanics together with general relativity leads to the Karolyhazy relation and a corresponding energy density of quantum fluctuations of space-time. Based on the energy density we propose a dark energy model, in which the age of the universe is introduced as the length measure. This dark energy is consistent with astronomical data if the unique numerical parameter in the dark energy model is taken to be a number of order one. The dark energy behaves like a cosmological constant at early time and drives the universe to an eternally accelerated expansion with power-law form at late time. In addition, we point out a subtlety in this kind of dark energy model. (c) 2007 Elsevier B.V. All rights reserved.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/84689b4084f47b0786c059e94fddb174cb668666

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Citations in the corpus

Dynamical systems applied to cosmology: Dark energy and modified gravity (2017, methodology): “Wei & Cai (2007) also studied vector fields interacting with scalar fields which can be motivated by Weyl geometries.”
Holographic dark energy (2016, methodology): “The first version of ADE by [393] made use of the physical time t as the IR cutoff.”