Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …

The observational evidence for the recent acceleration of the universe demonstrates that
canonical theories of cosmology and particle physics are incomplete—if not incorrect—and …

Context. In metric theories of gravity with photon number conservation, the luminosity and
angular diameter distances are related via the Etherington relation, also known as the …

A novel approach to quintessential inflation model building is studied, within the framework
of α-attractors, motivated by supergravity theories. Inflationary observables are in excellent …

This paper proposes a systematic study of cosmological signatures of modifications of
gravity via the presence of a scalar field with a multiplicative coupling to the electromagnetic …

A wide range of large scale observations hint towards possible modifications on the
standard cosmological model which is based on a homogeneous and isotropic universe …

We present a model independent and non-parametric reconstruction with a Machine
Learning algorithm of the redshift evolution of the Cosmic Microwave Background (CMB) …

Light scalar fields can naturally couple disformally to Standard Model fields without giving
rise to the unacceptably large fifth forces usually associated with light scalars. We show that …

The CMB temperature-redshift relation, T CMB (z)= T 0 (1+ z), is a key prediction of the
standard cosmology but is violated in many non-standard models. Constraining possible …

The redshift dependence of the cosmic microwave background temperature is one of the key
cosmological observables. In the standard cosmological model, one has T (z)= T 0 (1+ z) …