Novel approach towards the large-scale stable Interacting Dark-Energy models and their Astronomical Bounds

Abstract

Stability analysis of interacting dark energy models generally divides its parameters space into two regions: (i) $w_x\ge -1$ and $\xi \ge 0$ and (ii) $w_x\le -1$ and $\xi \le 0$, where $w_x$ is the dark energy equation of state and $\xi$ is the coupling strength of the interaction. Due to this separation, crucial information about the cosmology and phenomenology of these models may be lost. In a recent study it has been shown that one can unify the two regions with a coupling function which depends on the dark energy equation of state. In this work we introduce a new coupling function which also unifies the two regions of the parameter space and generalises the previous proposal. We analyse this scenario considering the equation of state of DE to be either constant or dynamical. We study the cosmology of such models and constrain both scenarios with the use of latest astronomical data from both background evolution as well as large scale structures. Our analysis shows that a non-zero value of the coupling parameter $\xi$ as well as the dark energy equation of state other than `$-1$' are allowed. However, within $1\sigma$ confidence level, $\xi =0$, and the dark energy equation of state equal to `$-1$' are compatible with the current data. In other words, the observational data allow a very small but nonzero deviation from the $\Lambda$-cosmology, however, within $1\sigma$ confidence-region the interacting models can mimick the $\Lambda$-cosmology. In fact we observe that the models both at background and perturbative levels are very hard to distinguish form each other and from $\Lambda$-cosmology as well. Finally, we offer a rigorous analysis on the current tension on $H_0$ allowing different regions of the dark energy equation of state which shows that interacting dark energy models reasonably solve the current tension on $H_0$.

arXiv comment17 pages, 5 tables, 14 captioned figures; this replacement matches with the published version at Physical Review D

References in corpus (68)

• Planck 2015 results. XIII. Cosmological parameters
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• Exploring the Expansion History of the Universe
• Accelerating Universes with Scaling Dark Matter
• A 2.4% Determination of the Local Value of the Hubble Constant
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• Coupled Quintessence
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• CFHTLenS tomographic weak lensing cosmological parameter constraints: Mitigating the impact of intrinsic galaxy alignments
• Cosmological perturbations
• The 6dF Galaxy Survey: z \approx 0 measurement of the growth rate and sigma_8
• The WiggleZ Dark Energy Survey: the growth rate of cosmic structure since redshift z=0.9
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering
• Can interacting dark energy solve the $H_0$ tension?
• Large-scale instability in interacting dark energy and dark matter fluids
• Interpreting large-scale redshift-space distortion measurements
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Galaxy clustering and redshift-space distortions at z=0.8 in the first data release
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: a large sample of mock galaxy catalogues
• Indications of a late-time interaction in the dark sector
• Cosmologies with Energy Exchange
• Cosmology and Astrophysical Constraints of Gauss-Bonnet Dark Energy
• Interactions in Scalar Field Cosmology
• The 2dF Galaxy Redshift Survey: Spherical Harmonics analysis of fluctuations in the final catalogue
• Probing the interaction between dark matter and dark energy in the presence of massive neutrinos
• Observational constraints on interacting quintessence models
• Linear and nonlinear interactions in the dark sector
• Dark coupling
• Observational constraints on an interacting dark energy model
• Interacting Dark Energy -- constraints and degeneracies
• Dark Interactions and Cosmological Fine-Tuning
• New constraints on interacting dark energy from cosmic chronometers
• Interacting models may be key to solve the cosmic coincidence problem
• Toward a solution of the coincidence problem
• Cosmological constraints on interacting dark energy with redshift-space distortion after Planck data
• Releasing scalar fields: cosmological simulations of scalar-tensor theories for gravity beyond the static approximation
• Adiabatic initial conditions for perturbations in interacting dark energy models
• An analytic model for interacting dark energy and its observational constraints
• Velocities as a probe of dark sector interactions
• A new interacting two fluid model and its consequences
• Cosmology of a Scalar Field Coupled to Matter and an Isotropy-Violating Maxwell Field
• On phenomenological models of dark energy interacting with dark matter
• Dark Coupling and Gauge Invariance
• Testing coupled dark energy with large scale structure observation
• A model with interaction of dark components and recent observational data
• Testing coupled dark energy models with their cosmological background evolution
• Covariantizing the interaction between dark energy and dark matter
• Reconstructing the dark sector interaction with LISA
• Cosmological discordances II: Hubble constant, Planck and large-scale-structure data sets
• Constraining a dark matter and dark energy interaction scenario with a dynamical equation of state
• Cosmological discordances: a new measure, marginalization effects, and application to geometry vs growth current data sets
• In search of the dark matter dark energy interaction: a kinematic approach
• Coupled dark energy with perturbed Hubble expansion rate
• Cosmological constraints on coupled dark energy
• Probing the imprint of interacting dark energy on very large scales
• A cosmographic analysis of holographic dark energy models
• Distinguishing interacting dark energy from wCDM with CMB, lensing, and baryon acoustic oscillation data
• Gauge-Invariant Perturbations of Varying-Alpha Cosmologies
• The transient acceleration from time-dependent interacting dark energy models
• Dark matter-dark energy interaction for a time-dependent equation of state
• Will there be again a transition from acceleration to deceleration in course of the dark energy evolution of the universe?
• Revisiting CFHTLenS cosmic shear: Optimal E/B mode decomposition using COSEBIs and compressed COSEBIs
• Cosmology: the search for twenty-four (or more) functions

Cited by in corpus (68)

• In the Realm of the Hubble tension $-$ a Review of Solutions
• Challenges for $\Lambda$CDM: An update
• New physics in light of the $H_0$ tension: an alternative view
• Non-minimal dark sector physics and cosmological tensions
• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• Tale of stable interacting dark energy, observational signatures, and the $H_0$ tension
• Constraints on the sum of the neutrino masses in dynamical dark energy models with $w(z)\ge -1$ are tighter than those obtained in $\Lambda$CDM
• Interacting scenarios with dynamical dark energy: observational constraints and alleviation of the $H_0$ tension
• Interacting dark energy with time varying equation of state and the $H_0$ tension
• Revisiting a negative cosmological constant from low-redshift data
• Can the $H_0$ tension be resolved in extensions to $\Lambda$CDM cosmology?
• Observational constraints on one-parameter dynamical dark-energy parametrizations and the $H_0$ tension
• Observational constraints on sign-changeable interaction models and alleviation of the $H_0$ tension
• Nonlinear interacting cosmological models after Planck 2018 legacy release and the $H_0$ tension
• Field theoretic interpretations of interacting dark energy scenarios and recent observations
• Astronomical bounds on a cosmological model allowing a general interaction in the dark sector
• Listening to the sound of dark sector interactions with gravitational wave standard sirens
• Do we have any hope of detecting scattering between dark energy and baryons through cosmology?
• 2021-$H_0$ Odyssey: Closed, Phantom and Interacting Dark Energy Cosmologies
• Finite-time Cosmological Singularities and the Possible Fate of the Universe
• Dark calling Dark: Interaction in the dark sector in presence of neutrino properties after Planck CMB final release
• Relieving the $H_0$ tension with a new interacting dark energy model
• Dark sectors with dynamical coupling
• All-inclusive interacting dark sector cosmologies
• An overview of what current data can (and cannot yet) say about evolving dark energy
• Effects of Anisotropic Stress in Interacting Dark Matter - Dark Energy Scenarios
• Cosmological discordances II: Hubble constant, Planck and large-scale-structure data sets
• Dawn of the dark: unified dark sectors and the EDGES Cosmic Dawn 21-cm signal
• Soundness of Dark Energy properties
• Remedy of some cosmological tensions via effective phantom-like behavior of interacting vacuum energy
• Cosmological constraints on an exponential interaction in the dark sector
• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
• Emergent Dark Energy, neutrinos and cosmological tensions
• Large-scale (in-) stability Analysis of an Exactly Solved Coupled Dark-Energy Model
• Understanding the phenomenology of interacting dark energy scenarios and their theoretical bounds
• Late-Time constraints on Interacting Dark Energy: Analysis independent of $H_0$, $r_d$ and $M_B$
• Tightening the reins on non-minimal dark sector physics: Interacting Dark Energy with dynamical and non-dynamical equation of state
• Dynamical Dark sectors and Neutrino masses and abundances
• Metastable dark energy models in light of Planck 2018: Alleviating the $H_0$ tension
• A Bayesian interpretation of inconsistency measures in cosmology
• Quantifying the impacts of future gravitational-wave data on constraining interacting dark energy
• Dynamics in Varying vacuum Finsler-Randers Cosmology
• Forecasting Interacting Vacuum-Energy Models using Gravitational Waves
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Theoretical and observational bounds on some interacting vacuum energy scenarios
• Exploration of interacting dynamical dark energy model with interaction term including the equation-of-state parameter: alleviation of the $H_0$ tension
• A model-independent reconstruction of dark sector interactions
• Non-parametric reconstruction of interaction in the cosmic dark sector
• Alleviating Cosmological Tensions with a Coupled Scalar Fields Model
• IDECAMB: an implementation of interacting dark energy cosmology in CAMB
• Cosmic sign-reversal: non-parametric reconstruction of interacting dark energy with DESI DR2
• Differentiating dark interactions with perturbation
• Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
• On the interacting dark energy scenarios $-$ the case for Hubble constant tension
• Forecast Analysis on Interacting Dark Energy Models from Future Generation PICO and DESI Missions
• Kinetically Coupled Scalar Fields Model and Cosmological Tensions
• Unphysical properties in a class of interacting dark energy models
• Cosmological fluids in the equivalence between Rastall and Einstein gravity
• Observational constraints in Delta Gravity: CMB and supernovas
• Interacting Models of Dark Energy and Dark Matter in Einstein scalar Gauss Bonnet Gravity
• Generalized Interacting Dark Energy Model and Loop Quantum Cosmology
• Reconstructing the dark matter and dark energy interaction scenarios from observations
• Perturbation in an interacting dark universe
• Nonlinear Matter Power Spectrum from relativistic $N$-body Simulations: ${\Lambda }_{\mathrm{s}}$CDM versus $\Lambda$CDM
• Some Classes of Interacting Two-Fluid Model of the Expanding Universe
• New tests of dark sector interactions from the full-shape galaxy power spectrum
• Dissecting the $H_0$ and $S_8$ tensions with Planck + BAO + supernova type Ia in multi-parameter cosmologies
• Perturbations In Some Dark Energy Models