Barrow holographic dark energy in the Brans-Dicke cosmology

Abstract

We construct a holographic model for dark energy in the Brans-Dicke cosmology by using the holographic principle considering the Barrow entropy instead of the standard Bekenstein-Hawking one. The former arises from the effort to account for quantum-gravitational effects in black-hole physics and, according to the gravity-thermodynamic conjecture, in the cosmological framework. In order to explore the cosmological consequences of our model, we consider the Hubble horizon as the IR cutoff. We investigate both the non-interacting and interacting cases with the sign-changeable and linear interactions, showing that they can explain the present accelerated phase of the Universe expansion, in contrast to the standard Holographic Dark Energy model. We then perform the classical stability analysis using the squared sound speed. We find that, whilst the non-interacting model is unstable against the small perturbations, the sign-changeable interacting one can be stable only for suitable values of the model parameters. On the other hand, the linear interacting model always predicts a stable Universe. The consistency of our model with cosmological observations is discussed.

9 pages, 15 figures (minor revision to v1)

References in corpus (32)

• Dynamics of dark energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Beyond the Cosmological Standard Model
• Dark Energy-Dark Matter Interaction and putative violation of the Equivalence Principle from the Abell Cluster A586
• Dynamics of dark energy with a coupling to dark matter
• The holographic dark energy in non-flat Brans-Dicke cosmology
• Dynamics of interacting dark energy
• The new form of the equation of state for dark energy fluid and accelerating universe
• Le Chatelier-Braun principle in cosmological physics
• Modified cosmology from extended entropy with varying exponent
• Barrow entropic dark energy: A member of generalized holographic dark energy family
• Dark Interactions and Cosmological Fine-Tuning
• Kaniadakis holographic dark energy and cosmology
• Improved Constraints on the Acceleration History of the Universe and the Properties of the Dark Energy
• Holographic dark energy from nonadditive entropy: cosmological perturbations and observational constraints
• Generalized entropies and corresponding holographic dark energy models
• Holographic dark energy in the DGP braneworld with GO cutoff
• Cosmological Evolution of Quintessence and Phantom with a New Type of Interaction in Dark Sector
• Holographic Dark Energy in Brans-Dicke Theory
• Geometrical observational bounds on a fractal horizon holographic dark energy
• Barrow Entropy Cosmology: an observational approach with a hint of stability analysis
• Baryon asymmetry from Barrow entropy: theoretical predictions and observational constraints
• Cosmic evolution and thermal stability of Barrow holographic dark energy in nonflat Friedmann-Robertson-Walker Universe
• q-generalized Tsallis thermostatistics in Unruh effect for mixed fields
• Kaniadakis holographic dark energy in Brans-Dicke cosmology
• Nonextensive Tsallis statistics in Unruh effect for Dirac neutrinos
• A note on interacting holographic dark energy with a Hubble-scale cutoff
• Precision Cosmology: Successes and Challenges
• Best values of parameters for interacting HDE with GO IR-cutoff in Brans-Dicke cosmology
• Dark Energy From Vacuum Fluctuations
• Cosmology in Brans-Dicke-de Rham-Gabadadze-Tolley massive gravity

Cited by in corpus (15)

• Constraining Barrow entropy-based Cosmology with power-law inflation
• Black hole geometrothermodynamics and critical phenomena: a look from Tsallis entropy-based perspective
• Saez-Ballester gravity in Kantowski-Sachs Universe: a new reconstruction paradigm for Barrow Holographic Dark Energy
• Imprints of Barrow-Tsallis Cosmology in Primordial Gravitational Waves
• Lagrangian reconstruction of Barrow holographic dark energy in interacting tachyon model
• Nonextensive entropies impact onto thermodynamics and phase structure of Kerr-Newman black holes
• Constraints on Barrow and Tsallis Holographic Dark Energy from DESI DR2 BAO data
• Quantum Entropy-Driven Modifications to Holographic Dark Energy in $f(G,T)$ Gravity
• Gravitational wave probes of Barrow cosmology with LISA standard sirens
• Holographic connection of f(G) gravity through Barrow and a generalized version of holographic dark fluid
• The $D$-dimensional charged AdS black holes solutions in polytropic dark energy from Barrow entropy
• Observational constraints on the modified cosmology inspired by string T-duality
• Constant-roll inflation and primordial black holes within Barrow entropic framework
• Observational constraints on Luciano-Saridakis entropic cosmology
• Thermodynamic formulation of Cotton gravity in the Codazzi parametrization