Solving the Coincidence Problem: Tracking Oscillating Energy

Details Solving the Coincidence Problem: Tracking Oscillating Energy Solving the Coincidence Problem: Tracking Oscillating Energy

2000-02-17

arxiv.org/abs/astro-ph/0002360v2

Phys.Rev.Lett.85:5276-5279,2000

Astronomy and Astrophysics

Astrophysics

4 pages, 3 embedded figures. Updated version includes analytic solution and Monte Carlo estimate of severity of fine tuning pr

Scientific paper

10.1103/PhysRevLett.85.5276

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 today is natural. We illustrate this paradigm with a model potential and show that its predictions are consistent with all observations.

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