A quintessence dynamical dark energy model from ratio gravity

Based on the work of ratio gravity developed in 2018, which postulates the deformation of the cross ratio to associate with the physical model of gravity, we develop a mechanism to generate dynamical dark energy – a quintessence field coupled with gravity. Such model causes the dark energy behaving...

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Bibliographic Details
Published inThe European physical journal. C, Particles and fields Vol. 82; no. 2; pp. 1 - 7
Main Author Liu, Jackie C. H.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2022
Springer
Springer Nature B.V
SpringerOpen
Subjects
Analysis
Astronomy
Astrophysics and Cosmology
Dark energy
Elementary Particles
Exact solutions
Gravity
Hadrons
Heavy Ions
Markov chains
Markov processes
Measurement Science and Instrumentation
Monte Carlo method
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quintessence (cosmology)
Regular Article - Theoretical Physics
String Theory
Supernovae
Universe
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Summary:Based on the work of ratio gravity developed in 2018, which postulates the deformation of the cross ratio to associate with the physical model of gravity, we develop a mechanism to generate dynamical dark energy – a quintessence field coupled with gravity. Such model causes the dark energy behaving differently in early and late time universe. In the radiation-dominated-era and matter-dominated-era, the related analytical solutions of the quintessence field have an interesting property – starting as a constant field, then oscillating as the universe expands. By Markov Chain Monte Carlo search of the parameter space with the local measurement (Type Ia supernovae) in the Bayesian framework, the probed range of H 0 (within 1 σ ) overlaps the H 0 value inferred from Planck CMB dataset by Λ CDM model.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-022-10134-1