$\Lambda CDM$ periodic cosmology

Abstract

We examine the possibility that Universe expansion be made of some $\Lambda CDM$ expansions repeating periodically, separated by some inflation and radiation dominated phases. This so-called $\Lambda CDM$ periodic cosmology is motivated by the possibility that inflation and the present phase of accelerated expansion be due to the same dark energy. Then, in a phase space showing the variation of matter density parameter ${\Omega }_m$ with respect to this of the radiation ${\Omega }_r$, the curve ${\Omega }_m({\Omega }_r)$ looks like a closed trajectory that Universe could run through forever. In this case, the end of the expansion acceleration of the $\Lambda CDM$ phase is the beginning of a new inflation phase. We show that such a scenario implies the coupling of matter and/or radiation to dark energy. We consider the simplest of these $\Lambda CDM$ periodic models i.e. a vacuum energy coupled to radiation. From matter domination phase to today, it behaves like a $\Lambda CDM$ model, then followed by an inflation phase. But a sudden and fast decay of the dark energy into radiation periodically ends the expansion acceleration. This leads to a radiation dominated Universe preceding a new $\Lambda CDM$ type expansion. The model is constrained with Markov Chain Monte Carlo simulations using supernovae, Hubble expansion, BAO and CMB data and fits the data as well as the $\Lambda CDM$ one.

arXiv comment9 pages, 7 figures, accepted for publication in MNRAS

References in corpus (34)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Extended Theories of Gravity
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• Phantom Energy and Cosmic Doomsday
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
• The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• Warm Inflation
• New constraints on cosmological parameters and neutrino properties using the expansion rate of the Universe to z~1.75
• Dark Energy Survey Year 1 Results: Measurement of the Baryon Acoustic Oscillation scale in the distribution of galaxies to redshift 1
• Loop Quantum Cosmology: An Overview
• Does Bulk Viscosity Create a Viable Unified Dark Matter Model?
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies
• f(R) gravity theories in Palatini formalism: cosmological dynamics and observational constraints
• Turnaround in Cyclic Cosmology
• Is the Jeffreys' scale a reliable tool for Bayesian model comparison in cosmology?
• Complete Cosmic History with a dynamical Lambda(H) term
• The Cyclic Model Simplified
• Unraveling the effective fluid approach for $f(R)$ models in the subhorizon approximation
• Constraining dark energy with Hubble parameter measurements: an analysis including future redshift-drift observations
• Deflation at Turnaround for Oscillatory Cosmology
• Robust and model-independent cosmological constraints from distance measurements
• Designing Horndeski and the effective fluid approach
• Spherically symmetric inhomogeneous model with Chaplygin gas
• Analyzing modified unimodular gravity via Lagrange multipliers
• From inflation to late time acceleration with a decaying vacuum coupled to radiation or matter
• Ten scenarios from early radiation to late time acceleration with a minimally coupled dark energy
• A coupled vacuum energy model producing endless alternated phases of accelerated and decelerated expansion

Cited by in corpus (2)

• Quantifying the $S_8$ tension with the Redshift Space Distortion data set
• From inflation to dark energy in scalar-tensor cosmology