Unification of Dark Matter and Dark Energy: the Inhomogeneous Chaplygin Gas

Abstract

We extend the world model of Kamenshchik et al. to large perturbations by formulating a Zeldovich-like approximation. We sketch how this model unifies dark matter with dark energy in a geometric setting reminiscent of M-theory.

10 pages, 1 figure, one sentence changed in text, acknwledgement expanded

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• Brane Dynamics, the Polytropic Gas and Conformal Bulk Fields
• Gravitational Origin of Phantom Dark Energy and Late Cosmic Acceleration
• Is $w\ne -1$ evidence for a dynamical dark energy equation of state ?
• On the concordance of cosmological data in the case of the generalized Chaplygin gas
• Scalar field potentials for closed and open cosmological models
• WMAP Constraints on Quintessence
• Black holes immersed in polytropic scalar field gas
• Confronting quintessence models with recent high-redshift supernovae data
• $K$-essence model from the mechanical approach point of view: coupled scalar field and the late cosmic acceleration
• A Comparison of Quintessence and Nonlinear Born-Infeld Scalar Field Using Gold Supernova data
• Black hole in a generalized Chaplygin-Jacobi dark fluid: shadow and light deflection angle
• Fitting cosmological data to the function $q(z)$ from GR Theory: Modified Chaplygin Gas
• Observational constraints on Chaplygin cosmology in a braneworld scenario with induced gravity and curvature effect
• Perturbed dark energy: classical scalar field versus tachyon
• A 5D non compact and non Ricci flat Kaluza-Klein Cosmology
• A new logotropic model based on a complex scalar field with a logarithmic potential
• Phase transition in Schwarzschild-de Sitter spacetime
• Mixed fluid cosmological model in $f(R,T)$ gravity
• Testing a dissipative kinetic k-essence model
• Late time cosmic acceleration from natural infrared cutoff?
• WMAP Constraints On K-Inflation
• Ghost Condensate Busting
• Dynamical system analysis of logotropic dark fluid with a power law in the rest-mass energy density
• Effect of low anisotropy on cosmological models by using supernova data
• Barrow holographic dark energy models in $f\left(Q\right)$ symmetric teleparallel gravity with Lambert function distribution
• Ghost Chaplygin scalar field model of dark energy
• Oscillating and Static Universes from a Single Barotropic Fluid
• How Slowly can the Early Universe Expand?
• Nonlinear Spinor Fields in Bianchi type-VI spacetime
• Hybrid Chaplygin gas and phantom divide crossing
• Emulating dark energy models with known equation of state via the created cold dark matter scenario
• Scalar field black holes
• Deformation of the quintom cosmological model and its consequences
• Clustering GCG: a viable option for unified dark matter-dark energy?
• Detectability of Cosmic Topology in Generalized Chaplygin Gas Models
• The Hamiltonian formalism for scalar fields coupled to gravity in a cosmological background
• Cosmological perturbations in the $\Lambda$CDM-like limit of a polytropic dark matter model
• A note on observational signatures in superluminal unified dark matter models
• Constraining the Lattice Fluid Dark Energy from SNe Ia, BAO and OHD
• Thermodynamical description of modified generalized Chaplygin gas model of dark energy
• Cosmological constrains on fast transition Unified Dark Energy/Matter models
• A cosmological model of the early universe based on ECG with variable $\Lambda$-term in Lyra geometry
• Cosmological models based on a complex scalar field with a power-law potential associated with a polytropic equation of state
• Crossing of the Cosmological Constant Boundary - an Equation of State Description
• Revisiting kink-like parametrization and constraints using OHD/Pantheon+/BAO samples
• Nonlinear Spinor Fields in Bianchi type-III spacetime
• Evolution of spherical overdensity in Chaplygin gas model
• A fully quantum method of determination of penetrability and reflection coefficients in quantum FRW model with radiation
• Interacting Chaplygin gas revisited
• Cosmic Acceleration in an Extended Brans-Dicke-Higgs Theory
• Statefinder analysis of the superfluid Chaplygin gas model
• The variation of the electromagnetic coupling and quintessence
• The Bianchi type-V Dark Energy Cosmology in Self Interacting Brans Dicke Theory of Gravity
• Cosmological scalar fields and Big-Bang nucleosynthesis
• Observational constraints on the unified dark matter and dark energy model based on the quark bag model
• Sudden Future Singularities in Quintessence and Scalar-Tensor Quintessence Models
• Structure formation and CMBR anisotropy spectrum in the inflessence model
• Mass varying dark matter in effective GCG scenarios
• Variable Chaplygin Gas: Constraints from Supernovae, GRB and Gravitational Wave Merger Events
• Regular Friedmann Universes and Matter Transformations
• Inflation as a Solution to the Early Universe Entropy Problem
• Constraints on the unified dark energy-dark matter model from latest observational data
• The clustering of dark energy
• Can the cosmological dark sector be modeled by a single scalar field?
• Cosmic Evolution with Early and Late Acceleration Inspired by Dual Nature of the Ricci Scalar Curvature
• Solar system tests of scalar field models with an exponential potential
• Dynamical neutrino masses in the generalized Chaplygin gas scenario with mass varying CDM
• Dieterici gas as a Unified Model for Dark Matter and Dark Energy
• Cosmological evolution of a D-brane
• Early-Matter-Like Dark Energy and the Cosmic Microwave Background
• Configurational Entropy in Chaplygin Gas Models
• Naturalness and stability of the generalized Chaplygin gas in the seesaw cosmon scenario
• Slow-roll Natural & Hilltop Inflation in Rastall Gravity
• A Kaluza-Klein Inspired Brans-Dicke Gravity with Dark Matter and Dark Energy Model
• No slow-roll inflation à la Generalized Chaplygin Gas in General Relativity
• Seeding the vacuum with entropy: the Chaplygin-like vacuum hypothesis
• Dark energy with $w\to -1$: Asymptotic $\Lambda$ versus pseudo-$\Lambda$
• Supernovae constraints on dark energy and modified gravity models
• A class of regular bouncing cosmologies
• Dark Energy vs. Dark Matter: Towards a Unifying Scalar Field?
• Gauss Bonnet dark energy Chaplygin Gas Model
• The $D$-dimensional charged AdS black holes solutions in polytropic dark energy from Barrow entropy
• Is Dark Energy Changing? Probing the Universe's Expansion with present and future astronomical probes
• Time dependent dark energy and the thermodynamics of many-body systems
• Noncommutative cosmological models induced by a symplectic formalism coupled to phantom fluids
• Scalar and vector perturbations in a universe with nonlinear perfect fluid
• Sound Speed in Extended Chaplygin Fluid
• The cosmological dark sector as a scalar $\sigma$-meson field
• Non-adiabatic primordial fluctuations
• Coupling active and sterile neutrinos in the cosmon plus seesaw framework
• Is it possible to observationally distinguish adiabatic Quartessence from LambdaCDM?
• The electromagnetic coupling and the dark side of the Universe
• Chaplygin Gas of Tachyon Nature Imposed by Symmetry and Constrained via H(z) Data
• Chaplygin electron gas model
• Geometric sigma model of the Universe
• Emergent Universe as an interaction in the dark sector
• Tachyon cosmology with non-vanishing minimum potential: a unified model
• Interacting Models of Generalised Chaplygin Gas and Modified Chaplygin Gas with Barotropic Fluid
• A scaling invariance of the perturbations in $k$-inflation models
• Scalar field in cosmology: Potential for isotropization and inflation
• Equilibrium and stability of neutrino lumps as TOV solutions
• f(R) cosmological solutions with varying speed of light
• Dark sector interactions in light of weak lensing data
• Perturbations with bulk viscosity in modified chaplygin gas cosmology
• Is the cosmological dark sector better modeled by a generalized Chaplygin gas or by a scalar field?
• Implications of $f(R)$ gravity on late-time cosmic structure growth through a complete description of density perturbations
• Gas of thin tubes of massless scalar field as a possible model of unified dark fluid
• Shear-free conditions of a Chaplygin-Gas-dominated universe
• Density perturbations in nonminimally coupled gravity: symptoms of Lagrangian density ambiguity
• Physical Implications and Updated Observational Constraints of the PAge-like Unified Dark Fluid Model
• Dark radiation from a unified dark fluid model
• Joint analysis of EDGES $21$-cm line observations with standard candles and rulers in $\Lambda$CDM and non-adiabatic gCg models
• Chaplygin and Polytropic gases Teleparallel Robertson-Walker $F(T)$ gravity solutions
• On dark sector scalar field theories driven by cosmological $c$-fields
• Background-level reconstruction of scalar-field potentials from dark-energy histories and comparison with analytic potential families
• Background dynamics and observational constraints of flat and non-flat $\Lambda (t)$CDM models from $H(z)$ and DESI DR2 BAO measurements
• Gauss-Bonnet Gravity and Spacetime Singularities
• Accretion of Generalized Chaplygin Gas onto Cosmologically Coupled Black Holes
• Cosmological and lunar laser ranging constraints on evolving dark energy in a nonminimally coupled curvature-matter gravity model
• Some Consequences of Dark Energy Density varying Exponentially with Scale Factor
• Dynamical friction shear and rotation in Chaplygin cosmology
• Cosmological bounds on dark matter annihilation using dark ages 21-cm signal
• Fermionic quantum cosmology as a framework for resolving type IV singularities