Solving the coincidence problem: Tracking oscillating energy

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Recent cosmological observations strongly suggest that the Universe is dominated by an unknown form of energy with negative pressure. Why is this dark energy density of order the critical density today? We propose that the dark energy has periodically dominated in the past so that its preponderance toda; is natural. We illustrate this paradigm with a model potential and show that its predictions are consistent with all observations.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2000-12
Language
English
Article Type
Article
Keywords

COLD DARK-MATTER; MICROWAVE BACKGROUND ANISOTROPY; COSMOLOGICAL CONSTANT; UNIVERSE; LAMBDA; MODELS; CONSTRAINTS; STATE; CONSEQUENCES; PARAMETERS

Citation

PHYSICAL REVIEW LETTERS, v.85, no.25, pp.5276 - 5279

ISSN
0031-9007
URI
http://hdl.handle.net/10203/71856
Appears in Collection
PH-Journal Papers(저널논문)
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