Holographic dark energy: constraints on the interaction from diverse observational data sets

Abstract

The present work deals with holographic dark energy models with Hubble horizon as the infra-red cut-off. The interaction rate between dark energy and dark matter has been reconstructed with three different choices of the interaction term. It is shown that the coupling parameter of the interaction term should evolve with redshift to allow the successful transition from decelerated to accelerated phase of expansion. Constraints on the model parameters are obtained from Markov Chain Monte Carlo (MCMC) analysis using the supernova distance modulus data and observational measurements of the Hubble parameter. Results show that the model with the coupling parameter increasing with redshift (z) or equivalently decreasing with the evolution, are ruled out. On the other hand, coupling parameters, increasing or slowly varying with the evolution, are consistent with the observed evolution scenario. A Bayesian evidence calculation has been carried out for statistical selection of the reconstructed models. Though the kinematical parameters are well behaved for these models, the physical variables which determine the nature of the components in the matter sector, are not at all realistic. We have concluded that the existence of spatial curvature is essential for this particular type of dark energy models.

16 pages, 7 figures. Accepted for publication in EPJ Plus

References in corpus (16)

• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• Age-dating Luminous Red Galaxies observed with the Southern African Large Telescope
• A Holographic Dark Energy Model from Ricci Scalar Curvature
• Infrared cut-off proposal for the Holographic density
• Le Chatelier-Braun principle in cosmological physics
• Entropic Accelerating Universe
• Covariant Generalized Holographic Dark Energy and Accelerating Universe
• Thawing quintessence with a nearly flat potential
• Holographic dark energy in Brans-Dicke theory
• Phantom Dark Energy Models with a Nearly Flat Potential
• Quintessence reconstructed: new constraints and tracker viability
• Holographic Dark Energy Model with Hubble Horizon as an IR Cut-off
• Reconstructing the interaction rate in holographic models of dark energy
• Agegraphic dark energy: growth index and cosmological implications
• Reconstruction of interaction rate in Holographic dark energy

Cited by in corpus (13)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Early and late universe holographic cosmology from a new generalized entropy
• Barrow entropic dark energy: A member of generalized holographic dark energy family
• Unifying Holographic Inflation with Holographic Dark Energy: a Covariant Approach
• Dynamical analysis and statefinder of Barrow holographic dark energy
• Non-parametric reconstruction of interaction in the cosmic dark sector
• Holographic realization of constant roll inflation and dark energy: An unified scenario
• Reconciling $S_8$: Insights from Interacting Dark Sectors
• Density perturbation in an interacting holographic dark energy model
• Alleviating the Hubble Tension with a Local Void and Transitions of the Absolute Magnitude
• A Bayesian approach to truncated data sets: An application to Malmquist bias in Supernova Cosmology
• Impact of the Infrared Cutoff on Structure Formation in Tsallis Holographic Dark Energy
• Perturbations In Some Dark Energy Models