A thermodynamic motivation for dark energy

Abstract

It is argued that the discovery of cosmic acceleration could have been anticipated on thermodynamic grounds, namely, the generalized second law and the approach to equilibrium at large scale factor. Therefore, the existence of dark energy -or equivalently, some modified gravity theory- should have been expected. In general, cosmological models that satisfy the above criteria show compatibility with observational data.

22 pages, 7 eps figures; Key words: dark energy, thermodynamics, modified gravity. Comments added and arguments sharpened

References in corpus (17)

• Dark Energy and the Accelerating Universe
• Dark torsion as the cosmic speed-up
• Dark Energy
• f(T) Gravity and local Lorentz invariance
• A Holographic Dark Energy Model from Ricci Scalar Curvature
• Hawking Radiation of Apparent Horizon in a FRW Universe
• Dark Energy and Dark Gravity
• Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld
• A parametric model for dark energy
• Le Chatelier-Braun principle in cosmological physics
• Deep Connection Between Thermodynamics and Gravity in Gauss-Bonnet Braneworld
• Interacting holographic dark energy
• Thermodynamics of Apparent Horizon in Brane World Scenarios
• Observational constraints on a holographic, interacting dark energy model
• Oscillations in the dark energy EoS: new MCMC lessons
• Dark Before Light: Testing the Cosmic Expansion History through the Cosmic Microwave Background
• Uniqueness of Current Cosmic Acceleration

Cited by in corpus (60)

• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• $f(Q,T)$ gravity models with observational constraints
• Observational constraints on sign-changeable interaction models and alleviation of the $H_0$ tension
• Three thermodynamically-based parametrizations of the deceleration parameter
• Cosmological consequences of an adiabatic matter creation process
• Does the entropy of the Universe tend to a maximum?
• Entropy evolution of universes with initial and final de Sitter eras
• Cosmic acceleration without dark energy: Background tests and thermodynamic analysis
• Accelerated and decelerated expansion in a causal dissipative cosmology
• Cosmic evolution and thermal stability of Barrow holographic dark energy in nonflat Friedmann-Robertson-Walker Universe
• Accelerating Universe in Hybrid and Logarithmic Teleparallel Gravity
• Gravitationally induced adiabatic particle production: From Big Bang to de Sitter
• Generalized second law of thermodynamics in scalar-tensor gravity
• Does information entropy play a role in the expansion and acceleration of the Universe?
• Null trajectories and bending of light in charged black holes with quintessence
• Late-Time Viscous Cosmology in $f(R,T)$ Gravity
• Recent advances in cosmological singularities
• Phase space analysis of bulk viscous matter dominated universe
• Entropy Maximization in the Emergent Gravity Paradigm
• Thermodynamics of nonsingular bouncing universes
• Late-time acceleration with a scalar field source: Observational constraints and statefinder diagnostics
• Thermodynamical description of the ghost dark energy model
• A note on the relations between thermodynamics, energy definitions and Friedmann equations
• Interacting Tsallis and Rényi Holographic Dark Energy with Hybrid Expansion Law
• Configuration entropy of the Cosmic Web: Can voids mimic the dark energy?
• Generalized holographic Ricci dark energy and generalized second law of thermodynamics in Bianchi Type I universe
• A Complete Cosmological Scenario in Teleparallel Gravity
• A thermodynamic characterization of future singularities?
• Thermodynamic of universe with a varying dark energy component
• On detecting interactions in the dark sector with H(z) data
• Do recent observations favor a cosmological event horizon: A thermodynamical prescription?
• Spatial Curvature and Thermodynamics
• Interacting cosmic fluids and phase transitions under a holographic modeling for dark energy
• Thermodynamic behavior and stability of Polytropic gas
• Type V singularities in non-standard cosmological backgrounds
• Thermodynamics and Lemaitre-Tolman-Bondi void models
• Gravitational entropy of local cosmic voids
• $f(Q,T)$ gravity: From early to late-time cosmic acceleration
• Configuration entropy in the $\Lambda$CDM and the dynamical dark energy models: Can we distinguish one from the other?
• A thermodynamic point of view on dark energy models
• Fluctuations of the flux of energy on the apparent horizon
• The emergence of cosmic repulsion
• Cosmological solutions in spatially curved universes with adiabatic particle production
• Thermodynamic analysis of universes with the initial and final de-Sitter eras
• Thermodynamics of the unified dark fluid with fast transition
• Thermodynamical description of modified generalized Chaplygin gas model of dark energy
• Thermodynamics of diffusive DM/DE systems
• Energy definition and dark energy: a thermodynamic analysis
• Generalized second law of thermodynamics for the matter creation scenario and emergence of phantom regime
• A study of holographic dark energy models using configuration entropy
• Type V singularities with inhomogeneous equations of state
• Study of thermal stability for different dark energy models
• Can we constrain the dark energy equation of state parameters using configuration entropy?
• Thermodynamic constraints on matter creation models
• Thermodynamics of sign-switching dark energy models
• Constraints on the radiation temperature before inflation
• Thermodynamic parametrization of dark energy
• Finite temperature R-squared quantum gravity
• Time evolution of the mutual information between disjoint regions in the Universe
• The small-scale structure of quantum spacetime