From inflation to late time acceleration with a decaying vacuum coupled to radiation or matter

Abstract

We consider General Relativity with matter and radiation, one of these fluids being coupled to vacuum. We find that Universe dynamics starts by an inflation phase if the coupled fluid has a negative energy density at early time. Then, there is always a finite scale factor singularity but when vacuum and matter are coupled and matter density behaves like a negative radiation density. Moreover, the convergence to the LCDM model is clearly easier to reach when vacuum is coupled to matter rather than to radiation. Two classes of theories are studied to illustrate these results.

arXiv comment9 pages, 7 figures

References in corpus (26)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• The Cosmological Constant
• Coupled Quintessence
• Interacting Quintessence
• Cosmological constant and vacuum energy: old and new ideas
• Stationary dark energy: the present universe as a global attractor
• Consequences of dark matter-dark energy interaction on cosmological parameters derived from SNIa data
• Le Chatelier-Braun principle in cosmological physics
• Interactions in Scalar Field Cosmology
• Cosmology with torsion: An alternative to cosmic inflation
• Warm inflation model building
• Restrictions on Negative Energy Density in Flat Spacetime
• Models of coupled dark matter to dark energy
• Expansion History with Decaying Vacuum: A Complete Cosmological Scenario
• Cosmology without inflation
• The cosmological constant and the time of its dominance
• Constraints on Dark Energy from Supernovae, Gamma Ray Bursts, Acoustic Oscillations, Nucleosynthesis and Large Scale Structure and the Hubble constant
• Testing modified gravity with Planck: the case of coupled dark energy
• Inflation, dark matter and dark energy in the string landscape
• New Cosmic Accelerating Scenario without Dark Energy
• The warm inflationary universe
• Uniting cosmological epochs through the twister solution in cosmology with non-minimal coupling
• Cosmological effects of coupled dark matter
• The Unifying Dark Fluid Model

Cited by in corpus (8)

• Nonsingular Decaying Vacuum Cosmology and Entropy Production
• f(R,T) Gravity Model Behaving as a Dark Energy Source
• Thermodynamic analysis of universes with the initial and final de-Sitter eras
• A Higher Dimensional Cosmological Model for the Search of Dark Energy Source
• From inflation to dark energy in scalar-tensor cosmology
• $\Lambda CDM$ periodic cosmology
• Cosmological Singularities in Brane Gravity
• Decaying vacuum and evolution from early inflation to late acceleration