The understanding of stellar structure represents the crossroads of our theories of the
nuclear force and the gravitational interaction under the most extreme conditions observably …

In this paper, we present an introduction to cosmic inflation in the framework of Palatini
gravity, which provides an intriguing alternative to the conventional metric formulation of …

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 …

The intrinsic presence of ghosts in the symmetric teleparallel framework is elucidated. We
illustrate our general arguments in f (Q) theories by studying perturbations in the three …

We discuss theories of gravity with independent metric (or frame field) and connection, from
the point of view of effective field theory. We count the parity-even Lagrangian terms of …

General relativity (GR) exists in different formulations. They are equivalent in pure gravity but
generically lead to distinct predictions once matter is included. After a brief overview of …

General relativity (GR) exists in different formulations, which are equivalent in pure gravity.
Once matter is included, however, observable predictions generically depend on the version …

Since the discovery of the accelerated expansion of the present universe, significant
theoretical developments have been made in the area of modified gravity. In the meantime …

A bstract We show that the minimal Weyl-invariant Einstein-Cartan gravity in combination
with the Standard Model of particle physics contains just one extra scalar degree of freedom …

Within the framework of metric-affine theories of gravity, where both the metric and
connection are treated as independent variables, we consider actions quadratic in the Ricci …