Cosmological constant, matter, cosmic inflation and coincidence

Abstract

We present a possible understanding to the issues of cosmological constant, inflation, matter and coincidence problems based only on the Einstein equation and Hawking particle production. The inflation appears and results agree to observations. The CMB large-scale anomaly can be explained and the dark-matter acoustic wave is speculated. The entropy and reheating are discussed. The cosmological term ${\Omega }_{{}_{\Lambda }}$ tracks down the matter ${\Omega }_{{}_M}$ until the radiation-matter equilibrium, then slowly varies, thus the cosmic coincidence problem can be avoided. The relation between ${\Omega }_{{}_{\Lambda }}$ and ${\Omega }_{{}_M}$ is shown and can be examined at large redshifts.

arXiv commentA short letter to appear in Modern Physics Letters A. arXiv admin note: substantial text overlap with arXiv:1910.03938

References in corpus (11)

• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Encyclopaedia Inflationaris
• New Model of Inflation with Non-minimal Derivative Coupling of Standard Model Higgs Boson to Gravity
• Adiabatic regularization and particle creation for spin one-half fields
• Fermionic current and Schwinger effect in de Sitter spacetime
• Cosmological constant vis-a-vis dynamical vacuum: bold challenging the $\Lambda$CDM
• The Hunt for Primordial Interactions in the Large Scale Structures of the Universe
• A model of interacting dark fluids tested with supernovae and Baryon Acoustic Oscillations data
• The phase and critical point of quantum Einstein-Cartan gravity
• Theoretical Cosmology

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