Cosmography can be considered as a sort of a model-independent approach to tackle the
dark energy/modified gravity problem. In this review, the success and the shortcomings of …

We heal the cosmological constant problem by means of a cancellation mechanism that
adopts a phase transition during which quantum fluctuations are eliminated. To this purpose …

Cosmography becomes non-predictive when cosmic data span beyond the redshift limit z≃
1. This leads to a strong convergence issue that jeopardizes its viability. In this work, we …

We propose a new parametrization of dark energy motivated by thermodynamics. To this
aim, we consider Padé polynomials to reconstruct the form of deceleration parameter …

We study eight different gamma-ray burst (GRB) data sets to examine whether current GRB
measurements—that probe a largely unexplored part of cosmological redshift (z) space …

In this work, we propose a non-interacting model of Barrow holographic dark energy (BHDE)
using Barrow entropy in a spatially flat FLRW Universe considering the IR cutoff as the …

It has been proven that in standard Einstein gravity, exotic matter (ie, matter violating the
pointwise and averaged Weak and Null Energy Conditions) is required to stabilize …

We derive exact traversable wormhole solutions in the framework of f (R) gravity with no
exotic matter and with stable conditions over the geometric fluid entering the throat. For this …

We explore a toy model mechanism of geometric cancellation, alleviating the (classical)
cosmological constant problem. To do so, we assume at primordial times that vacuum …

In this research paper, we explore a well-motivated parametrization of the time-dependent
deceleration parameter, characterized by a cubic form in cosmic time t, in the context of late …