The recent result of the Dark Energy Spectroscopic Instrument (DESI) in combination with
other cosmological data shows evidence of the evolving dark energy parametrized by the w …

Observational constraints on time-varying dark energy (eg, quintessence) are commonly
presented on aw 0-wa plot that assumes the equation of state of dark energy strictly satisfies …

Abstract We implement Crossing Statistics to reconstruct in a model-agnostic manner the
expansion history of the universe and properties of dark energy, using DESI Data Release 1 …

Abstract Recent Baryon Acoustic Oscillation (BAO) measurements released by DESI, when
combined with Cosmic Microwave Background (CMB) data from Planck and two different …

New constraints on the expansion rate of the Universe seem to favor evolving dark energy in
the form of thawing quintessence models, ie, models for which a canonical, minimally …

In this work, we implement Gaussian process regression to reconstruct the expansion history
of the Universe in a model-agnostic manner, using the Pantheon-Plus SN-Ia compilation in …

Several studies in the literature have found a disagreement between compressed data on
Baryon Acoustic Oscillations (BAO) derived using two distinct methodologies: the two …

We investigate the redshift dependence of the Hubble tension by comparing the luminosity
distances obtained using an up-to-date BAO dataset (including the latest DESI data) …

We analyze theories that do not have a de Sitter vacuum and cannot lead to slow-roll
quintessence, but which nevertheless support a transient era of accelerated cosmological …

We develop and apply a new framework for reconstructing the ionization history during the
epoch of recombination with combinations of cosmic microwave background (CMB), baryon …