Cosmological Fluids with Logarithmic Equation of State

Abstract

We investigate the cosmological applications of fluids having an equation of state which is the analog to the one related to the isotropic deformation of crystalline solids, that is containing logarithmic terms of the energy density, allowing additionally for a bulk viscosity. We consider two classes of scenarios and we show that they are both capable of triggering the transition from deceleration to acceleration at late times. Furthermore, we confront the scenarios with data from Supernovae type Ia (SN Ia) and Hubble function observations, showing that the agreement is excellent. Moreover, we perform a dynamical system analysis and we show that there exist asymptotic accelerating attractors, arisen from the logarithmic terms as well as from the viscosity, which in most cases correspond to a phantom late-time evolution. Finally, for some parameter regions we obtain a nearly de Sitter late-time attractor, which is a significant capability of the scenario since the dark energy, although dynamical, stabilizes at the cosmological constant value.

AoP accepted

References in corpus (71)

• 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
• The Cosmological Constant and Dark Energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Extended Theories of Gravity
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• The Case for a Positive Cosmological Lambda-term
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Phantom Energy and Cosmic Doomsday
• A 2.4% Determination of the Local Value of the Hubble Constant
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• f(T) teleparallel gravity and cosmology
• Exponential potentials and cosmological scaling solutions
• Quantum deSitter cosmology and phantom matter
• Quintom Cosmology: Theoretical implications and observations
• Dark Energy
• Inhomogeneous Equation of State of the Universe: Phantom Era, Future Singularity and Crossing the Phantom Barrier
• Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
• Palatini Approach to Modified Gravity: f(R) Theories and Beyond
• Holographic dark energy and cosmic coincidence
• Interacting Dark Matter and Dark Energy
• Sudden Future Singularities
• Dark Energy: Vacuum Fluctuations, the Effective Phantom Phase, and Holography
• Large-scale instability in interacting dark energy and dark matter fluids
• Dark Energy-Dark Matter Interaction and putative violation of the Equivalence Principle from the Abell Cluster A586
• Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
• Quantum escape of sudden future singularity
• Black holes, cosmological solutions, future singularities, and their thermodynamical properties in modified gravity theories
• Cosmology with Interaction between Phantom Dark Energy and Dark Matter and the Coincidence Problem
• On average properties of inhomogeneous fluids in general relativity II: perfect fluid cosmologies
• Dynamics of interacting dark energy
• Cosmological Evolution With Interaction Between Dark Energy And Dark Matter
• The new form of the equation of state for dark energy fluid and accelerating universe
• Viscous Cosmology for Early- and Late-Time Universe
• Mimetic gravity: a review of recent developments and applications to cosmology and astrophysics
• Effects of the interaction between dark energy and dark matter on cosmological parameters
• Thermodynamics of dark energy interacting with dark matter and radiation
• Interacting Dark Energy and Dark Matter: observational Constraints from Cosmological Parameters
• Superquintessence
• Dark Interactions and Cosmological Fine-Tuning
• Dynamical behavior in $f(T,T_G)$ cosmology
• Cosmological Effects of a Class of Fluid Dark Energy Models
• New constraints on interacting dark energy from cosmic chronometers
• Testing the Interaction between Dark Energy and Dark Matter with Planck Data
• Cosmographic analysis with Chebyshev polynomials
• Phase-space analysis of Horava-Lifshitz cosmology
• Dynamical Systems Perspective of Cosmological Finite-time Singularities in $f(R)$ Gravity and Interacting Multifluid Cosmology
• Interacting Dark Energy and Cosmological Equations of State
• Cosmological Perturbations with Multiple Fluids and Fields
• Cosmological dynamics of mimetic gravity
• On the large-scale instability in interacting dark energy and dark matter fluids
• Cosmological models described by a mixture of van der Waals fluid and dark energy
• Fluid Interpretation of Cardassian Expansion
• Direct Detection of Dark Matter Rates for Various Wimps
• Stability properties of some perfect fluid cosmological models
• The Logotropic Dark Fluid as a unification of dark matter and dark energy
• F(R) cosmology in presence of a phantom fluid and its scalar-tensor counterpart:towards a unified precision model of the universe evolution
• Non-adiabatic dark fluid cosmology
• Gauge-invariant magnetic perturbations in perfect-fluid cosmologies
• Phase structure of the massive chiral Gross-Neveu model from Hartree-Fock
• Updated constraints on $f(T)$ models using direct and indirect measurements of the Hubble parameter
• Inflationary universe in terms of a van der Waals viscous fluid
• Relativistic self-gravitating Bose-Einstein condensates and cold baryons with a stiff equation of state
• Autonomous Dynamical System Approach for Inflationary Gauss-Bonnet Modified Gravity
• A Study of Finite-time Singularities of Loop Quantum Cosmology Interacting Multifluids
• Comparison between the Logotropic and $\Lambda$CDM models at the cosmological scale
• Archimedean-type force in a cosmic dark fluid: III. Big Rip, Little Rip and Cyclic solutions
• Dissipative Universe-Inflation with Soft Singularity
• Inflation and Bounce from Classical and Loop Quantum Cosmology Imperfect Fluids

Cited by in corpus (25)

• The state of the dark energy equation of state circa 2023
• Effective field description of the Anton-Schmidt cosmic fluid
• Extended logotropic fluids as unified dark energy models
• An analysis of the $H_0$ tension problem in a universe with a viscous dark fluid
• Testing the equation of state for viscous dark energy
• Neural network reconstructions for the Hubble parameter, growth rate and distance modulus
• Cosmology of a generalised version of holographic dark energy in presence of bulk viscosity and its inflationary dynamics through slow roll parameters
• The Classical and Loop Quantum Cosmology Phase Space of Interacting Dark Energy and Superfluid Dark Matter
• Black hole thermodynamics from logotropic fluids
• The unified history of the viscous accelerating universe and phase transitions
• On sign-changeable interaction in FLRW cosmology
• Cosmological model with linear equation of state parameter in f(R, Lm) gravity
• Dynamical description of a quintom cosmological model nonminimally coupled with gravity
• Dark sector unifications: dark matter-phantom energy, dark matter -- constant $w$ dark energy, dark matter-dark energy-dark matter
• A generalized $\Lambda$CDM model with parameterized Hubble parameter in particle creation, viscous and $f(R)$ model framework
• On the uniqueness of $\Lambda$CDM-like evolution for homogeneous and isotropic cosmology in General Relativity
• Viscous Accelerating Universe with Non-linear and Logarithmic Equation of State Fluid
• A new logotropic model based on a complex scalar field with a logarithmic potential
• Energy conditions for Inhomogeneous EOS and its Thermodynamics analysis with the resolution on finite time future singularity problems
• Cosmological model with Gong-Zong Parametrization in $f(R,L_m)$ gravity
• Viscous coupled fluids in terms of a log-corrected equation of state
• Observational constraints in late time for an axially symmetric transitioning model with bulk viscous fluid
• Finite scale factor and future singularities
• Multiple fluid theory of cosmic evolution and its thermodynamic analysis
• Singularity softening and avoidance by the action of thermal radiation in a generalized entropic cosmology