Holographic dark energy in Rastall theory

Abstract

Bearing holographic dark energy hypothesis in mind, the ability of vacuum energy in describing the current accelerated universe is studied in the framework of Rastall theory. Here, in addition to the ordinary approach in which it is expected that this energy plays the role of dark energy, we also address a new approach where the sum of this energy and Rastall term is responsible for the current accelerated universe. We also investigate the cosmological outcomes of using Tsallis entropy in quantifying the energy of fields in vacuum for both mentioned approaches. The implications of considering an interaction between the various segments of cosmic fluid have been addressed in each studied cases. The normalized Hubble parameter for the models have also been plotted and compared that with the H(z) data consisting of 41 data points in the redshift range of 0.07< z<2.36.

arXiv comment25 pages, 24 figures

References in corpus (18)

• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• A Model of Holographic Dark Energy
• Effective Field Theory, Black Holes, and the Cosmological Constant
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Entropy Bounds and Dark Energy
• Holographic dark energy and cosmic coincidence
• Probable Values of the Cosmological Constant in a Holographic Theory
• Einstein and Rastall Theories of Gravitation in Comparison
• Dark energy as the weight of violating energy conservation
• Rastall Cosmology and the ΛCDM Model
• Instability of holographic dark energy models
• Cosmological model from the holographic equipartition law with a modified Rényi entropy
• Accelerated cosmos in a non-extensive setup
• Probing the cosmological viability of non-gaussian statistics
• Implications, consequences and interpretations of generalized entropy in the cosmological setups
• A divergence free parametrization of deceleration parameter for scalar field dark energy
• Constraining the Rastall parameters in static spacetimes with galaxy-scale strong gravitational lensing
• Emergent cosmic space in Rastall theory

Cited by in corpus (5)

• Barrow HDE model for Statefinder diagnostic in FLRW Universe
• Cosmic dynamics and qualitative study of Rastall model with spatial curvature
• Tsallis Holographic Dark Energy Reconsidered
• Thermodynamics of the most generalized form of Holographic Dark Energy and some particular cases with Corrected Entropies
• Charged analog of anisotropic dark energy star in Rastall gravity