Dynamics of interacting scalar field model in the realm of chiral cosmology

Abstract

The strange behaviour of the universe's dark sector offers us the flexibility to address cosmological problems with different approaches. Using this flexibility, we consider a possible exchange of energy among the dark sector components as a viable candidate model. In the present work, we investigate the interaction between two scalar fields within the generalization of a two-component chiral cosmology. We also show that there exists a unique equivalence between fields and fluids description of interacting dark sector model. Later, a detailed analysis of the dynamics of the dark energy-dark matter model with coupling in both kinetic and potential parts has been performed using a method of qualitative analysis of dynamical systems. Moreover, the cosmological viability of this model is analyzed for the potential of an exponential form via the phase-space study of autonomous system for various cosmological parameters.

arXiv comment21+6 pages, Supported New figures, Few modification, references added

References in corpus (76)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Dynamics of dark energy
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Modified Gravity and Cosmology
• The World as a Hologram
• Cosmological parameters from SDSS and WMAP
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Essentials of k-essence
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Dark Energy Constraints from the Cosmic Age and Supernova
• Can the dark energy equation-of-state parameter w be less than -1?
• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Quintom Cosmology: Theoretical implications and observations
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• Measuring the Baryon Acoustic Oscillation scale using the SDSS and 2dFGRS
• BVRI Light Curves for 22 Type Ia Supernovae
• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• Tachyon Dynamics in Open String Theory
• Cosmological Dynamics of Phantom Field
• Is there Supernova Evidence for Dark Energy Metamorphosis ?
• Dynamical systems applied to cosmology: dark energy and modified gravity
• The State of the Dark Energy Equation of State
• Non-minimal dark sector physics and cosmological tensions
• The case for dynamical dark energy revisited
• Crossing the Phantom Divide: Theoretical Implications and Observational Status
• Aspects of the cosmological "coincidence problem"
• Dynamics of interacting dark energy
• Phantom Field and the Fate of Universe
• A SHARP view of H0LiCOW: $H_0$ from three time-delay gravitational lens systems with adaptive optics imaging
• Hubble Sinks In The Low-Redshift Swampland
• Model-Independent Constraints on Dark Energy Density from Flux-averaging Analysis of Type Ia Supernova Data
• Energy conditions and their cosmological implications
• Model independent constraints on dark energy evolution from low-redshift observations
• Cosmological Evolution of Interacting Phantom Energy with Dark Matter
• Interacting models may be key to solve the cosmic coincidence problem
• Quintom cosmologies admitting either tracking or phantom attractors
• Phantom Cosmology without Big Rip Singularity
• Is Local $H_0$ At Odds With Dark Energy EFT?
• Dynamical Systems Perspective of Cosmological Finite-time Singularities in $f(R)$ Gravity and Interacting Multifluid Cosmology
• Generalized hybrid metric-Palatini gravity
• An analytic model for interacting dark energy and its observational constraints
• A model with interaction of dark components and recent observational data
• Dark energy equation of state parameter and its variation at low redshifts
• Chasing the phantom: A closer look at Type Ia supernovae and the dark energy equation of state
• Phase Space Analysis of the Accelerating Multi-fluid Universe
• Is the future universe singular: Dark Matter versus modified gravity?
• Beyond Einstein's General Relativity: Hybrid metric-Palatini gravity and curvature-matter couplings
• Kinetic k-essence ghost dark energy model
• A Detection of the Integrated Sachs-Wolfe Effect
• Observational constraints of a new unified dark fluid and the $H_0$ tension
• Interacting 3-form dark energy models: distinguishing interactions and avoiding the Little Sibling of the Big Rip
• Dynamics of a two scalar field cosmological model with phantom terms
• Exact Solutions in Chiral Cosmology
• Bayesian Evidences for Dark Energy models in light of current obsevational data
• The Classical and Loop Quantum Cosmology Phase Space of Interacting Dark Energy and Superfluid Dark Matter
• Dark energy and dark matter unification from dynamical space time: observational constraints and cosmological implications
• Quintessence and the cosmological constant
• Cosmological dynamics of interacting dark energy and dark matter in viable models of f(R) gravity
• Cosmological dynamics of the general non-canonical scalar field models
• The late Universe with non-linear interaction in the dark sector: the coincidence problem
• The Phase Space of $k$-Essence $f(R)$ Gravity Theory
• Thawing and Freezing Quintessence Models: A thermodynamic Consideration
• Asymptotic behavior of $N$-fields Chiral Cosmology
• Coupled quintessence with a generalized interaction term
• Towards a possible solution for the coincidence problem: f(G) gravity as background
• Anisotropic chiral cosmology: exact solutions
• Dark Energy: is it `just' Einstein's Cosmological Constant Lambda?
• Phantom Dark Energy and its Cosmological Consequences

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