Litcius/Paper detail

Barrow agegraphic dark energy

Umesh Kumar Sharma, Gunjan Varshney, Vipin Chandra Dubey

2020International Journal of Modern Physics D69 citationsDOIOpen Access PDF

Abstract

In this work, we propose a new dark energy (DE) model by applying the Barrow entropy and the holographic principle, with a time scale as IR cut-off. Analyzing the conformal time as well as universe’s age as infrared cut-offs, we explore the cosmological importance of the suggested DE models and examine the universe evolution filled with the proposed DE applicants and a pressure-less matter. We observe that the equation of state, deceleration, the density parameters can present adequate nature, and these models may also explain the late-time acceleration though the proposed models are unstable except for some values of Barrow exponent [Formula: see text]. Furthermore, we mention the consequences of the presence of interaction among the universe sectors.

Topics & Concepts

PhysicsDark energyEntropy (arrow of time)UniverseAstrophysicsTheoretical physicsConformal mapAge of the universeCosmologyMetric expansion of spaceScale factor (cosmology)AccelerationEnergy densityHolographyShape of the universeExponentDeceleration parameterDe Sitter universeDark fluidSpectral densityDivergence (linguistics)Cosmological modelScale (ratio)Conformal symmetryCosmology and Gravitation TheoriesGalaxies: Formation, Evolution, PhenomenaBlack Holes and Theoretical Physics