Can the clustered dark matter and the smooth dark energy arise from the same scalar field ?

Abstract

Cosmological observations suggest the existence of two different kinds of energy densities dominating at small ($\lesssim 500$ Mpc) and large ($\gtrsim 1000$ Mpc) scales. The dark matter component, which dominates at small scales, contributes ${\Omega }_m\approx 0.35$ and has an equation of state $p=0$ while the dark energy component, which dominates at large scales, contributes ${\Omega }_V\approx 0.65$ and has an equation of state $p\simeq -\rho$. It is usual to postulate wimps for the first component and some form of scalar field or cosmological constant for the second component. We explore the possibility of a scalar field with a Lagrangian $L =- V(ϕ) \sqrt{1 - \del^i ϕ\del_i ϕ}$ acting as {\it both} clustered dark matter and smoother dark energy and having a scale dependent equation of state. This model predicts a relation between the ratio $r={\rho }_V/{\rho }_{\mathrm{DM}}$ of the energy densities of the two dark components and expansion rate $n$ of the universe (with $a(t)\propto t^n$) in the form $n=(2/3)(1+r)$. For $r\approx 2$, we get $n\approx 2$ which is consistent with observations.

Revised to match the published version. Minor changes and a reference added

References in corpus (12)

• Cosmology and the Fate of Dilatation Symmetry
• Rolling Tachyon
• Accelerated expansion of the universe driven by tachyonic matter
• Unification of Dark Matter and Dark Energy: the Inhomogeneous Chaplygin Gas
• Cosmic String Production Towards the End of Brane Inflation
• Cosmological Evolution of the Rolling Tachyon
• Power-Law Inflation from the Rolling Tachyon
• Assisted inflation via tachyon condensation
• Inflation from D-\bar{D} brane annihilation
• Brane cosmology driven by the rolling tachyon
• On the Cosmological Relevance of the Tachyon
• Cosmological Constraints on Tachyon Matter

Cited by in corpus (276)

• Dynamics of dark energy
• Gravity and the Thermodynamics of Horizons
• Purely kinetic k-essence as unified dark matter
• Cosmology with tachyon field as dark energy
• Reconciling dark energy models with f(R) theories
• Cosmological Dynamics of Phantom Field
• Dynamical systems applied to cosmology: dark energy and modified gravity
• Infrared cut-off proposal for the Holographic density
• The end of unified dark matter?
• Dark Energy from Mass Varying Neutrinos
• WMAP constraints on low redshift evolution of dark energy
• Observational constraints on dark energy with generalized equations of state
• Dark Energy from structure: a status report
• Tachyons, Scalar Fields and Cosmology
• Extended tachyon field, Chaplygin gas and solvable k-essence cosmologies
• Dark Energy and Gravity
• New infrared cut-off for the holographic scalar fields models of dark energy
• A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy
• Cosmological parameters from supernova observations: A critical comparison of three data sets
• Observational constraints on low redshift evolution of dark energy: How consistent are different observations?
• On the spherical collapse model in dark energy cosmologies
• Constraints on the generalized Chaplygin gas from supernovae observations
• The Revival of the Unified Dark Energy-Dark Matter Model ?
• Crossing of the w=-1 Barrier by D3-brane Dark Energy Model
• Dust of Dark Energy
• Dark energy from backreaction
• New generalized Chaplygin gas as a scheme for unification of dark energy and dark matter
• Generalized Chaplygin gas as a unified scenario of dark matter/energy: observational constraints
• An Alternative f (R, T) Gravity Theory and the Dark Energy Problem
• Cosmological Effects of a Class of Fluid Dark Energy Models
• The Evolution of Substructure in Galaxy, Group and Cluster Haloes I: Basic Dynamics
• Dark-Energy Evolution Across the Cosmological-Constant Boundary
• Cosmology with hybrid expansion law: scalar field reconstruction of cosmic history and observational constraints
• Tracking solutions in tachyon cosmology
• Coupling of Rolling Tachyon to Closed Strings
• Time and Tachyon
• Structure Formation in Inhomogeneous Dark Energy Models
• High-redshift objects and the generalized Chaplygin gas
• Decay of Unstable D-branes with Electric Field
• Phantom Cosmologies
• Cosmology with a Variable Chaplygin Gas
• Cluster number counts dependence on dark energy inhomogeneities and coupling to dark matter
• Strange stars in $f(R,\mathcal{T})$ gravity
• String-inspired cosmology: Late time transition from scaling matter era to dark energy universe caused by a Gauss-Bonnet coupling
• Prospects of Inflation
• Holographic Cosmology 3.0
• Tachyon inflation: tests and comparison with single scalar field inflation
• Remarks on Tachyon Driven Cosmology
• Quasi normal modes in Schwarzschild-DeSitter spacetime: A simple derivation of the level spacing of the frequencies
• Anisotropic strange star with Tolman-Kuchowicz metric under $f(R,T)$ gravity
• Exactly Solvable SFT Inspired Phantom Model
• Constraints on Chaplygin quartessence from the CLASS gravitational lens statistics and supernova data
• Inflation, dark matter and dark energy in the string landscape
• Selected topics in scalar-tensor theories and beyond
• Unified Dark Matter in Scalar Field Cosmologies
• Dark Fluid: a complex scalar field to unify dark energy and dark matter
• Smooth dynamical (de)-phantomization of a scalar field in simple cosmological models
• Vacuum Fluctuations of Energy Density can lead to the observed Cosmological Constant
• Tachyon dark energy models: dynamics and constraints
• Anisotropic strange stars under simplest minimal matter-geometry coupling in the $f(R,\mathcal{T})$ gravity
• f(R) theories of gravity in Palatini approach matched with observations
• Dark energy exponential potential models as curvature quintessence
• New holographic scalar field models of dark energy in non-flat universe
• Disformal Scalar Fields and the Dark Sector of the Universe
• ${\varphi }^2$ as Dark Matter
• General Non-minimal Kinetic coupling to gravity
• Cosmological constraints on Chaplygin gas dark energy from galaxy clusters X-ray and supernova data
• Black holes in the presence of dark energy
• Unified Dark Matter Scalar Field Models
• Cosmology from Rolling Massive Scalar Field on the anti-D3 Brane of de Sitter Vacua
• Stability properties of some perfect fluid cosmological models
• Unified dark energy models : a phenomenological approach
• A k-essence Model Of Inflation, Dark Matter and Dark Energy
• A Viable Cosmology with a Scalar Field Coupled to the Trace of the Stress-Tensor
• Interacting polytropic gas model of phantom dark energy in non-flat universe
• Modelling galaxy halos using dark matter with pressure
• Beyond the perfect fluid hypothesis for dark energy equation of state
• Entropy perturbations in quartessence Chaplygin models
• Initial state of matter fields and trans-Planckian physics: Can CMB observations disentangle the two?
• Observational Constraints on Chaplygin Quartessence: Background Results
• Constraining dark energy models using the lookback time to galaxy clusters and the age of the universe
• On-shell S-matrix and tachyonic effective actions
• How the Scalar Field of Unified Dark Matter Models Can Cluster
• Non-minimal Kinetic coupling to gravity and accelerated expansion
• Inhomogeneous tachyon decay, light-cone structure and D-brane network problem in tachyon cosmology
• Cosmology with decaying tachyon matter
• Interacting new agegraphic tachyon, K-essence and dilaton scalar field models of dark energy in non-flat universe
• Challenges for Kinetic Unified Dark Matter
• A Note on Inflation with Tachyon Rolling on the Gauss-Bonnet Brane
• Crossing the phantom divide in an interacting generalized Chaplygin gas
• Cosmological tachyon condensation
• Unified dark energy and dark matter from a scalar field different from quintessence
• Condensate cosmology -- dark energy from dark matter
• Steep Inflation followed by Born-Infeld Reheating
• Interacting Ricci Dark Energy with Logarithmic Correction
• Stability Analysis in Tachyonic Potential Chameleon cosmology
• Exact scaling solutions and fixed points for general scalar field
• Chaplygin gas dominated anisotropic brane world cosmological models
• Tachyonic Quintessential Inflation
• Dynamics of a scalar field in Robertson-Walker spacetimes
• Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology
• The generalized second law in irreversible thermodynamics for the interacting dark energy in a non-flat FRW universe enclosed by the apparent horizon
• Unified Model of k-Inflation, Dark Matter & Dark Energy
• Statefinder Diagnostic for Dilaton Dark Energy
• Non-minimally Coupled Tachyonic Inflation in Warped String Background
• Viscous dissipative Chaplygin gas dominated homogenous and isotropic cosmological models
• Braneworld Mimetic Cosmology
• Scalar Field Dark Energy Perturbations and their Scale Dependence
• Can Brans-Dicke scalar field account for dark energy and dark matter?
• Reconstruction of quintessence field for the THDE with swampland correspondence in $f(R,T)$ gravity
• Supernova constraints on alternative models to dark energy
• Reconstructing interacting entropy-corrected holographic scalar field models of dark energy in non-flat universe
• Will there be again a transition from acceleration to deceleration in course of the dark energy evolution of the universe?
• Bayesian Evidences for Dark Energy models in light of current obsevational data
• Aspects of Scalar Field Dynamics in Gauss-Bonnet Brane Worlds
• Stringy Dark Energy Model with Cold Dark Matter
• Unification models with reheating via primordial black holes
• ISW effect in Unified Dark Matter Scalar Field Cosmologies: an analytical approach
• Coupled Quintessence and Phantom Based On a Dilaton
• Unimodular $f(R,T)$ Gravity
• Non-minimal kinetic coupling and the phenomenology of dark energy
• Observational Constraints on Cardassian Expansion
• Reconstructing K-essence
• Low redshift observational constraints on tachyon models of dark energy
• Number counts in homogeneous and inhomogeneous dark energy models
• Fine Tuning Free Paradigm of Two Measures Theory: K-Essence, Absence of Initial Singularity of the Curvature and Inflation with Graceful Exit to Zero Cosmological Constant State
• Probing Dark Energy at Galactic and Cluster Scales
• Holographic dark energy in a non-flat universe with Granda-Oliveros cut-off
• Fitting Non-Minimally Coupled Scalar Models to Gold SnIa Dataset
• Coupling Quintessence to Inflation in Supergravity
• Cosmic age, Statefinder and $Om$ diagnostics in the decaying vacuum cosmology
• Extended Born-Infeld Dynamics and Cosmology
• Observational constraints on generalized Chaplygin gas model
• Statefinder diagnostic and $w-w^{\prime }$ analysis for interacting polytropic gas dark energy model
• Fixed points in interacting dark energy models
• Hamilton-Jacobi Formalism for Tachyon Inflation
• Gauge Fields and Scalars in Rolling Tachyon Backgrounds
• Exact Solutions in Open Bosonic String Field Theory and Marginal Deformation in CFT
• Measuring the Chaplygin gas equation of state from angular and luminosity distances
• Cluster scaling relations from cosmological hydrodynamic simulations in dark energy dominated universe
• Dark Matter and Dark Energy from a single scalar field and CMB data
• Multiple Dark Matter as a self-regulating mechanism for dark sector interactions
• Scalar field and time varying Cosmological constant in $f(R,T)$ gravity for Bianchi type-I Universe
• Note on the thermodynamics and the speed of sound of a scalar field
• COSMOS-$e^{\prime }$-GTachyon from String Theory
• Soft coincidence in late acceleration
• Cosmological perturbations and noncommutative tachyon inflation
• Tsallis holographic dark energy for inflation
• Chaotic scalar fields as models for dark energy
• A new approach in stability analysis: case study: tachyon cosmology with non-minimally coupled scalar field-matter
• Why Does Gravity Ignore the Vacuum Energy?
• WMAP constraints on Cardassian model
• Constraints on alternative models to dark energy
• Dark Energy Interacting with Dark Matter in Classical Einstein and Loop Quantum Cosmology
• Unification of Dark Energy and Dark Matter
• Hybrid Dark Sector: Locked Quintessence and Dark Matter
• Tachyon Matter in Loop Quantum Cosmology
• Does Quartessence Ease Tensions?
• Bouncing universe with the non-minimally coupled scaler field and its reconstructing
• Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity
• Interacting viscous ghost tachyon, K-essence and dilaton scalar field models of dark energy
• Halos of Unified Dark Matter Scalar Field
• Cosmological Evolution of a Tachyon-Quintom Model of Dark Energy
• Conformally Coupled Tachyonic Dark Energy
• Measuring Unified Dark Matter with 3D Cosmic Shear
• Agegraphic Dark Energy Model in Non-Flat Universe: Statefinder Diagnostic and $w-w^{\prime }$ Analysis
• Tachyon Field in Intermediate Inflation on the Brane
• Response of distance measures to the equation of state
• Interacting fluids generating identical, dual and phantom cosmologies
• Compact stellar models in modified gravity
• A one-parameter formula for testing slow-roll dark energy: observational prospects
• A short review on clustering dark energy
• Reconstruction of scalar potentials in two-field cosmological models
• A tachyonic scalar field with mutually interacting components
• Instability of Chaplygin gas trajectories in unified dark matter models
• A fluid os strings as a viable candidate to the dark side of the universe
• Dilaton Coupled Quintessence Model in the $\omega -{\omega }^{\prime }$ Plane
• Networks of cosmological histories, crossing of the phantom divide line and potentials with cusps
• Born-Infeld cosmology with scalar Born-Infeld matter
• Non-minimal kinetic coupling and Chaplygin gas cosmology
• Cosmological evolution of interacting dark energy in Lorentz violation
• Born-Infeld Type Phantom Model in the $\omega -{\omega }^{\prime }$ Plane
• One-loop quantum corrections to cosmological scalar field potentials
• Corrected holographic dark energy with power-law entropy and Hubble Horizon cut-off in FRW Universe
• Time and distance constraints on accelerating cosmological models
• Inflessence: a phenomenological model for inflationary quintessence
• A note on the relations between thermodynamics, energy definitions and Friedmann equations
• Dark energy and supermassive black holes
• Friedmann Equation for Brans Dicke Cosmology
• Tachyon Field in Cosmology
• Parametrization of Tachyon Field
• Proper Matter Collineations of Plane Symmetric Spacetimes
• Lagrangian description of cosmic fluids: mapping dark energy into unified dark energy
• Induced Gravity and the Attractor Dynamics of Dark Energy/Dark Matter
• QCD modified ghost scalar field dark energy models
• Differentiating dark interactions with perturbation
• Dark energy and dark matter from an inhomogeneous dilaton
• Evolution of perturbations in distinct classes of canonical scalar field models of dark energy
• LRS Bianchi type-I bulk viscous cosmological models in $f(R,T)$ gravity
• Constraints on the generalized tachyon field models from latest observational data
• Evolution of Anisotropies in Eddington-Born-Infeld Cosmology
• Sub-Quantum Dark Energy
• A simplified approach for Chaplygin-type cosmologies
• Forecast Analysis on Interacting Dark Energy Models from Future Generation PICO and DESI Missions
• Dynamical system analysis of Dirac-Born-Infeld scalar field cosmology in coincident $f(Q)$ gravity
• Brane tachyon dynamics
• Interacting Dark Energy: Dynamical System Analysis
• Multi-fluid cosmology in Einstein gravity: analytical solutions
• Cosmological constraints on unifying Dark Fluid models
• Cosmological constraints from low-redshift data
• Constraints on tachyon inflationary models with an AdS/CFT correspondence
• Shape of Dark Energy: Constraining Its Evolution with a General Parametrization
• Whether Lyra's Manifold Itself is a Hidden Source of Dark Energy
• Constraining dark energy using the cross correlations of weak lensing with post-reionization probes of neutral hydrogen
• Thermodynamics in the universe described by the emergence of the space and the energy balance relation
• Holographic dark energy with time varying $c^2$ parameter
• Quantum cosmic models and thermodynamics
• Interacting entropy-corrected holographic scalar field models in non-flat universe
• A note on the decay of noncommutative solitons
• Cosmological Scaling Solutions with Tachyon:Modified Gravity Model
• Inclusive Constraints on Unified Dark Matter Models from Future Large-Scale Surveys
• Nonsingular density profiles of dark matter halos and Strong gravitational lensing
• Generalized models of unification of dark matter and dark energy
• Dissipative Unified Dark Fluid Model
• Emergence of space and cosmic evolution based on entropic force
• Dissipative quintessence, and its cosmological implications
• Polytropic gas scalar field models of dark energy
• Interacting viscous entropy-corrected holographic scalar field models of dark energy with time-varying G in modified FRW cosmology
• Mixed fluid cosmological model in $f(R,T)$ gravity
• A new logotropic model based on a complex scalar field with a logarithmic potential
• Perturbations in Tachyon Dark Energy and their Effect on Matter Clustering
• WMAP Constraints On K-Inflation
• Phase transition in Schwarzschild-de Sitter spacetime
• Perturbed dark energy: classical scalar field versus tachyon
• Dynamics of tachyon field with an inverse square potential in loop quantum cosmology
• Clustering GCG: a viable option for unified dark matter-dark energy?
• Anisotropic Dark Energy and the Generalized Second Law of Thermodynamics
• Scalar field inflation and Shan-Chen fluid models
• Could the Lyra manifold be the hidden source of the dark energy?
• Sub-horizon evolution of cold dark matter perturbations through dark matter-dark energy equivalence epoch
• Constraining the Lattice Fluid Dark Energy from SNe Ia, BAO and OHD
• Non-linear spherical collapse in tachyon models, and a comparison of collapse in tachyon and quintessence models of dark energy
• Observational constraints to a unified cosmological model
• Tachyon field non-minimally coupled to massive neutrino matter
• Coincidence problem within dark energy as a coupled self-interacting Bose-Einstein gas
• Dynamical System Analysis of Brane Induced Gravity with Tachyon Field
• Dynamics of tachyon field in spatially curved FRW universe
• Cosmological models based on a complex scalar field with a power-law potential associated with a polytropic equation of state
• New holographic Chaplygin gas model of dark energy
• Crossing the phantom divide with a classical Dirac field
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• Cosmic acceleration in a model of scalar-tensor gravitation
• Intensity mapping of post-reionization 21-cm signal and its cross-correlations as a probe of $f(R)$ gravity
• A Kaluza-Klein Inspired Brans-Dicke Gravity with Dark Matter and Dark Energy Model
• The Energy Density of the Quaternionic Field as Dark Energy in the Universe
• Gödel-type universes in energy-momentum-squared gravity
• Potentials of Coupled Quintessence Based on a Dilaton
• Preheating and Dark Sector of Universe
• Non-Affine Extensions of the Raychaudhuri Equation in the K-essence Framework
• Nonlinear evolution of anisotropic matter configurations under higher-order curvature corrections
• Warm constant-roll inflation in brane-world cosmology
• Mirage Cosmology of U(1) Gauge Field on Unstable D3 Brane Universe
• Observational constraints on thawing quintessence scalar field model
• Interacting dark fluid in the universe bounded by event horizon : A non-equilibrium prescription
• Cosmological scenario based on the particle creation and holographic equipartition
• Faster-Than-Light Solitons in 1 + 1 Dimensions
• Large-scale structure formation in cosmology with classical and tachyonic scalar fields
• Termodinámica de agujeros negros y campos escalares
• Power-law and Logarithmic Entropy Corrected Holographic Dark Energy Models in Brans-Dicke Cosmology with Granda-Oliveros Cut-Off
• Phase space analysis and cosmography of a two-fluid cosmological model
• Holographic dark energy models with Interactions and entropy corrections for different cutoffs in the Brans-Dicke cosmology
• Parametrization of Born-Infeld Type Phantom Dark Energy Model
• Constraining tachyonic inflationary β-exponential model with Continuous Spontaneous Localization collapse scheme
• The Possibility of Tachyons as Soliton Solutions in 3+1 Dimensions via k-field Models
• Perturbations In Some Dark Energy Models
• The relation between Geometry and Matter in classical and quantum Gravity and Cosmology