The discovery of cosmic acceleration has triggered a consistent body of theoretical work
aimed at modeling its phenomenology and understanding its fundamental physical nature …

We review one of the most fruitful areas in cosmology today that bridge theory and data—the
temporal growth of large-scale structure. We go over the growth's physical foundations, and …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

We study observational constraints on the nonmetricity f (Q)-gravity which reproduces an
exact Λ CDM background expansion history while modifying the evolution of linear …

We present constraints on extensions of the minimal cosmological models dominated by
dark matter and dark energy, Λ CDM and w CDM, by using a combined analysis of galaxy …

We investigate the evolution of scalar perturbations in f (T) teleparallel gravity and its effects
on the cosmic microwave background (CMB) anisotropy. The f (T) gravity generalizes the …

We present the public version of hi_class (www. hiclass-code. net), an extension of the
Boltzmann code CLASS to a broad ensemble of modifications to general relativity. In …

Most existing theories of dark energy and/or modified gravity, involving a scalar degree of
freedom, can be conveniently described within the framework of the Effective Theory of Dark …

Small fluctuations around homogeneous and isotropic expanding backgrounds are the main
object of study in cosmology. Their origin and evolution is sensitive to the physical …

Positivity bounds—constraints on any low-energy effective field theory imposed by the
fundamental axioms of unitarity, causality and locality in the UV—have recently been used to …