Undulant Universe

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

References in corpus (5)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Anthropic Landscape of String Theory
• Oscillating Quintom and the Recurrent Universe
• Constraining Dark Energy with X-ray Galaxy Clusters, Supernovae and the Cosmic Microwave Background
• Current Observational Constraints on Cosmic Doomsday

Cited by in corpus (23)

• Cosmic Growth History and Expansion History
• Reconstructing Dark Energy
• Quintom models with an equation of state crossing -1
• Exploring Cosmological Expansion Parametrizations with the Gold SnIa Dataset
• Observational $H(z)$ Data and Cosmological Models
• Features in Dark Energy Equation of State and Modulations in the Hubble Diagram
• Constraints on Cosmological Models and Reconstructing the Acceleration History of the Universe with Gamma-Ray Burst Distance Indicators
• Reconstructing the Cosmic Expansion History up to Redshift z=6.29 with the Calibrated Gamma-Ray Bursts
• Classification of dark energy models in the (w_0,w_a) plane
• Evolution of Oscillating Scalar Fields as Dark Energy
• What Can Gamma Ray Bursts Teach Us About Dark Energy?
• Probing for the Cosmological Parameters with PLANCK Measurement
• Testing Oscillating Primordial Spectrum and Oscillating Dark Energy with Astronomical Observations
• Cosmological bounds on oscillating dark energy models
• Fitting oscillating string gas cosmology to supernova data
• From model dynamics to oscillating dark energy parameterisation
• Observational Constraints on Undulant Cosmologies
• Minimal Noncanonical Cosmologies
• Ultrahigh-energy neutrino flux as a probe of large extra-dimensions
• Quintessence models with an oscillating equation of state and their potentials
• The dark(er) side of inflation
• Cosmological Constraints on the Undulant Universe
• Windowing Artifacts Likely Account for Recent Claimed Detection of Oscillating Cosmic Scale Factor