In this review, we give a brief introduction on the aspects of some extra dimension models
and the five-dimensional thick brane models in extended theories of gravity. First, we briey …

In the context of a ghost free f (R, G) model, we present a non-singular cosmological
scenario in which the universe initially contracts through an ekpyrotic phase having a …

In order to unravel the present situation of the PBH overproduction problem, our study
emphasizes the critical role played by the equation of state (EoS) parameter w within the …

In this work we consider a cosmological scenario in which the Universe contracts initially
having a bouncing-like behavior, and accordingly after it bounces off, it decelerates …

Gravity's quantum nature can be probed in a laboratory by witnessing the entanglement
between the two quantum systems, which cannot be possible if gravity is a classical entity. In …

In the context of a ghost free f (R, G) model, an extended matter bounce scenario is studied
where the form of the scale factor is given by a (t)=(a 0 t 2+ 1) n. The ghost free character of …

We propose a cosmological scenario in which the universe undergoes through a non-
singular bounce, and after the bounce, it decelerates having a matter-like dominated …

We have explicitly demonstrated that scalar coupled Gauss-Bonnet gravity in four
dimensions can have nontrivial effects on the early inflationary stage of our Universe. In …

The intriguing question, why the present scale of the universe is free from any perceptible
footprints of rank-2 antisymmetric tensor fields (generally known as Kalb-Ramond fields), is …

In this work, we study nonsingular bounce cosmology in the context of the Lagrange
multiplier generalized F (R) gravity theory of gravity. We specify our study by using a specific …