A conjecture on the origin of dark energy

Details A conjecture on the origin of dark energy A conjecture on the origin of dark energy

2010-01-25

arxiv.org/abs/1001.4567v2

Chinese Phys. Lett. 22, 783, 2005

Physics

General Physics

11 pages, no figures

Scientific paper

10.1088/0256-307X/22/3/073

The physical origin of holographic dark energy (HDE) is investigated. The main existing explanations, namely the UV/IR connection argument of Cohen et al, Thomas' bulk holography argument, and Ng's spacetime foam argument, are shown to be not satisfactory. A new explanation of the HDE model is then proposed based on the ideas of Thomas and Ng. It is suggested that the dark energy might originate from the quantum fluctuations of spacetime limited by the event horizon of the universe. Several potential problems of the explanation are also discussed.

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