In this paper, we have investigated the physical behavior of cosmological models in framework modified Teleparallel gravity. This model is established using a Renyi holographic ``dark energy (RHDE) with Hubble cutoff. Here considered homogeneous and isotropic Friedman universe filled perfect `fluid. The parameters are derived for present Compliances 43 observational data sets (OHD). equation st...

Recently, in [1], we presented the first combined non-parametric reconstruction of three time-dependent functions that capture departures from standard cosmological model, $\Lambda$CDM, expansion history and gravitational effects on matter light currently available combination background large scale structure data. The was performed with without a theory-informed prior, built general Horndeski ...

Discoveries in the last few years have revolutionized our knowledge of the universe and our ideas of its ultimate fate. Measurements of the expansion of the universe show that it is not slowing down under normal gravity but accelerating due to an unknown, gravitationally repulsive “dark energy”. This may be a clue to new properties of quantum physics or of gravity beyond Einstein. I present an ...

The non-equivalence between the metric and Palatini formalisms of f(R) gravity is an intriguing feature of these theories. However, in the recently proposed hybrid metric-Palatini gravity, consisting of the superposition of the metric Einstein-Hilbert Lagrangian with an f(R) term constructed à la Palatini, the “true” gravitational field is described by the interpolation of these two non-equival...

We discuss that it is quite possible to realize the smooth transition of universe between a matter/radiation dominated deceleration and dark energy acceleration, even with variation proton-to-electron mass ratio. The incorporated into theory gravity using cosmological Higgs scalar field non-trivial self-interaction potential, leading varying vacuum expectation value (VEV). This matches well dat...

We construct a dark energy model where a scalar field non-minimally coupled to gravity plays the role of the dark component. We compare cosmological consequences of this non-minimal coupling of the scalar field and gravity in the spirit of the dark energy paradigm in Jordan and Einstein frames. Some important issues such as phantom divide line crossing, existence of the bouncing solutions and t...