A5009582649- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Galaxies: Formation, Evolution, Phenomena
- Traffic Prediction and Management Techniques
- Geophysics and Gravity Measurements
- Dark Matter and Cosmic Phenomena
- Risk and Safety Analysis
- Solar and Space Plasma Dynamics
- Relativity and Gravitational Theory
GLA University
2021-2023
In the present work, we consider recently proposed non-interacting Barrow holographic dark energy (Int. J. Geom. Methods Mod. Phys. 18(01) (2021) 2150014, doi:10.1142/S0219887821500146) with Hubble horizon as IR cutoff in a flat FLRW universe. We examine evolutionary behavior of deceleration parameter and equation state for different exponent [Formula: see text], observe suitable model. choose text] which is explained by phantom scalar field, then exhibit phantomic narration reconstruct...
This research study investigates Barrow holographic dark energy with an density of ρΛ=CH2−Δ by considering the Hubble horizon as IR cut-off in f(R,T) gravity framework. We employ to obtain equation state for a flat FLRW Universe. Concretely, we correspondence between quintessence, k-essence, and dilation scalar field models Furthermore, reconstruct dynamics potential all these different values parameter: Δ. Via this study, can show that models, if corresponding model parameters satisfy some...
In this paper, we investigate Barrow holographic dark energy (BHDE) using Hubble horizon as infrared cut-off in the framework of Bianchi-I, anisotropic model by considering hybrid expansion law (HEL). We have examined different cosmological parameters like density parameters, EoS parameter BHDE model, which support present accelerated Universe. also reconciled reconstructing evolution scalar field potential. The K-essence has been taken for study reconstruction, exhibits at present.
In this paper, we have investigated some recently proposed entropy-based versions of various HDE models, namely, the TADE, THDE, RHDE and SMHDE for different values model parameter [Formula: see text] with help two diagnostic tools, in context a flat Friedmann–Lema[Formula: text]tre–Robertson–Walker Universe. The statefinder hierarchy is first tool, by which examine these DE models. evolution parameters text], has been plotting against redshift text]. evolutionary trajectories all models...
In this paper, we investigate a non-interacting model considering spatially anisotropic and homogeneous Bianchi type-[Formula: see text] Universe, filled with Barrow holographic dark energy (BHDE) pressureless matter. We examine some important cosmological parameters for the evolutionary report to witness adequate nature in BHDE as including deceleration parameter, jerk equation of state parameter density parameter. To study more briefly, diagnose statefinder parameters, [Formula: analysis...
In this paper, we investigate the recently proposed New Barrow Agegraphic Dark Energy (NBADE) model by taking distinct values of parameter [Formula: see text] in context Friedmann–Robertson–Walker (FRW) Universe. We have used different diagnostic tools to discriminate NBADE from text]CDM model, namely statefinder pair text], pair, jerk and planes. The trajectories for evolution parameters are plotted using at initially text].
The second order perturbation calculations for gravity wave and Einstein equation space time matter are presented the FRW metric cosmological model. While exact equations found, suitable approximations made to obtain definite results. In case small wavelength allows nearly locally flat background obtaining a fit WMAP data. density curvature is retained length scale of WMAP. Clustering inhomogeneity understood. ripples from Big Bang couple nonlinearly redistribute modes higher values 'l'...