Testing bound dark energy with cosmological parameter and fundamental constant evolution

Abstract

A new bound dark energy, BDE, cosmology has been proposed where the dark energy is the binding energy between light meson fields that condense a few tens of years after the big bang. It is reported that the correct dark energy density emerges using particle physics without fine tuning. This alone makes the BDE cosmology worthy of further investigation. This work looks at the late time BDE predictions of the evolution of cosmological parameters and the values of fundamental constants to determine whether the cosmology's predictions are consistent with observation. The work considers the time period between a scale factor of 0.1 and 1.0. A model BDE cosmology is considered with current day values of the cosmological parameters well within the observational limits. The calculations use three different values of the current day dark energy equation of state close to minus one. All three cases produce evolutions of the cosmological parameters and fundamental constants consistent with the observational constraints. Analytic relations between the BDE and cosmological parameters are developed to insure a consistent set of parameters.

arXiv commentAccepted for publication in MNRAS

References in corpus (17)

• Quintessence and the Rest of the World
• On the Cosmological Implications of the String Swampland
• The Topological Vertex
• The String Landscape and the Swampland
• Coupled Variations of Fundamental Couplings and Primordial Nucleosynthesis
• Robust Constraint on a Drifting Proton-to-Electron Mass Ratio at z=0.89 from Methanol Observation at Three Radio Telescopes
• Universality classes for models of inflation
• Constraints on changes in the proton-electron mass ratio using methanol lines
• Constraining Variations in the Fine Structure Constant in the presence of Early Dark Energy
• Universality for quintessence
• Bayesian correction of $H(z)$ data uncertainties
• Fundamental Constant Observational Bounds on the Variability of the QCD Scale
• Beta Function Quintessence Cosmological Parameters and Fundamental Constants II: Exponential and Logarithmic Dark Energy Potentials
• Testing the nature of Dark Energy with Precision Cosmological constraints
• Constraints on quintessence and new physics from fundamental constant
• Bound Dark Energy: towards understanding the nature of the Dark Energy
• Beta Function Quintessence Cosmological Parameters and Fundamental Constants I: Power and Inverse Power Law Dark Energy Potentials

Cited by in corpus (1)

• Constraints on the electron-to-proton mass ratio variation at the epoch of reionization