Undulant Universe
arXiv:astro-ph/0412010 · doi:10.1103/PhysRevD.71.063533
Abstract
If the equation of state for "dark energy" varies periodically, the expansion of the Universe may have undergone alternating eras of acceleration and deceleration. We examine a specific form that survives existing observational tests, does not single out the present state of the Universe as exceptional, and suggests a future much like the matter-dominated past: a smooth expansion without a final inflationary epoch.
4 pages, 4 figures, uses RevTeX