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 …

Whereas the nature of dark components in the Universe remains unknown, alternative
models of gravity have been developed to offer a geometric explanation to the origin of such …

In this work, we have studied the possibility of setting up Bell's inequality violating
experiment in the context of cosmology, based on the basic principles of quantum …

Wormholes are tunnels connecting different regions in spacetime. They were obtained
originally as a solution for Einstein's General Theory of Relativity and according to this …

We explore a new horizon of modified gravity from the viewpoint of particle physics. As a
concrete example, we take the F (R) gravity to raise a question: can a scalar particle …

In this work, we have developed an elegant algorithm to study the cosmological
consequences from a huge class of quantum field theories (ie superstring theory …

In this paper, we conduct a study on the scalar field obtained from f (R) gravity via Weyl
transformation of the spacetime metric g μ ν from the Jordan frame to the Einstein frame. The …

We study the cosmic history of the scalaron in F (R) gravity with constructing the time
evolution of the cosmic environment and discuss the chameleonic dark matter based on the …

We derive the upper limit on the dark matter (DM) fraction in primordial black holes (PBHs) in
the mixed DM scenarios. In this scenarios, a PBH can accrete weakly interacting massive …

The f (R, T) gravity models, for which R is the Ricci scalar and T is the trace of the energy–
momentum tensor, elevate the degrees of freedom of the renowned f (R) theories, by making …