Thermodynamics and dark energy

Abstract

A significant observational effort has been directed to unveil the nature of the so-called dark energy. However, given the large number of theoretical possibilities, it is possible that such a task cannot be performed on the basis only of the observational data. In this article we discuss some thermodynamic properties of this energy component by assuming that its constituents are massless quanta with a general time-dependent equation-of-state parameter $\omega (z)={\omega }_0+{\omega }_{a}f(z)$, where ${\omega }_0$ and ${\omega }_a$ are constants and $f(z)$ may assume different forms. We show that very restrictive bounds can be placed on the $w_0$ - $w_a$ space when current observational data are combined with the thermodynamic constraints derived.

arXiv comment5 pages, 3 figures, LaTeX

References in corpus (37)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• Exploring the Expansion History of the Universe
• Accelerating Universes with Scaling Dark Matter
• Can the dark energy equation-of-state parameter w be less than -1?
• SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators
• Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
• Dark Energy
• First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
• The Physics of Cosmic Acceleration
• WMAP constraints on low redshift evolution of dark energy
• Approaches to Understanding Cosmic Acceleration
• Using SN Ia Light Curve Shapes to Measure The Hubble Constant
• Future Supernovae observations as a probe of dark energy
• Dark energy and the generalized second law
• Constraining the equation of state of the Universe from Distant Type Ia Supernovae and Cosmic Microwave Background Anisotropies
• New dark energy constraints from supernovae, microwave background and galaxy clustering
• A parametric model for dark energy
• The foundations of observing dark energy dynamics with the Wilkinson Microwave Anisotropy Probe
• Gravitational Lensing as a Probe of Quintessence
• Testing dark energy beyond the cosmological constant barrier
• Phantom thermodynamics
• Thermodynamics, Spectral Distribution and the Nature of Dark Energy
• Can luminosity distance measurements probe the equation of state of dark energy
• The Beginning and Evolution of the Universe
• Measuring Time-Dependence of Dark Energy Density from Type Ia Supernova Data
• Unified dark energy thermodynamics: varying w and the -1-crossing
• A generalized equation of state for dark energy
• Dark Energy and Some Alternatives: a Brief Overview
• On Phantom Thermodynamics
• Temperature Evolution Law of Imperfect Relativistic Fluids
• Chemical Potential and the Nature of the Dark Energy: The case of phantom
• The Evolution of Inverse Power Law Quintessence at Low Redshift
• Lectures on Dark Energy and Cosmic Acceleration
• On phantom thermodynamics with negative temperature
• Thermodynamics of Dark Energy

Cited by in corpus (20)

• Cosmological Applications of Pade Approximant
• Black holes in the presence of dark energy
• Dark Energy and Dark Matter from an additional adiabatic fluid
• Growth of matter perturbations in the extended viscous dark energy models
• Physical constraints on interacting dark energy models
• General treatment for dark energy thermodynamics
• Viability of Variable Generalised Chaplygin gas - a thermodynamical approach
• Extended $\Lambda$CDM model and viscous dark energy: A Bayesian analysis
• Emerging the dark sector from thermodynamics of cosmological systems with constant pressure
• Dark energy from Geometrothermodynamics
• Forecasting cosmological parameter constraints from near-future space-based galaxy surveys
• Constraining deviations from $\Lambda$CDM in the Hubble expansion rate
• Thermodynamic Constraints on the Dark Sector
• Probing departures from $\Lambda$CDM by late-time datasets
• Evidence for evolving dark energy from DESI DR2 BAO and Pantheon${}^{+}$, DES-Dovekie, and Union3
• Modeling dark energy through an Ising fluid with network interactions
• A Thermodynamic Model for Dark Energy Including Particle Creation or Destruction Processes
• Thermodynamic parametrization of dark energy
• Thermodynamic formulation of Cotton gravity in the Codazzi parametrization
• Is the $\Lambda$CDM Model in Crisis?