activity
20152026
most citedPlanck 2018 results. X. Constraints on inflation

2.4k citations · 13.2k across the 70 of their papers we have counts for

collaborators

72 papers

astro-ph.CO2026

When One-Parameter Dark Energy Makes Neutrinos Physical Again

Weiqiang Yang, Eleonora Di Valentino, Eric V. Linder +2

A puzzling implication of current data interpreted in the -Cold Dark Matter cosmology is the preference for a negative sum of neutrino masses. Moving to CDM brings an ap…

astro-ph.CO2026

When Dark Energy Turns On: Constraints on a Critical Emergence Model

Mahdi Najafi, Mahdi Habibollahi, Masoume Reyhani +4

We investigate a specific emergent dark energy scenario, known as critically emergent dark energy (CEDE), in which dark energy is effectively absent in the early Universe and becom…

astro-ph.CO2026

Cracks in the Standard Cosmological Model: Anomalies, Tensions, and Hints of New Physics

Eleonora Di Valentino

Cosmology has entered an era of unprecedented precision, yet increasing accuracy has revealed cracks in the standard CDM paradigm. Although the model remains highly successful w…

astro-ph.CO2025

A Multi-Probe ISW Study of Dark Energy Models with Negative Energy Density: Galaxy Correlations, Lensing Bispectrum, and Planck ISW-Lensing Likelihood

Payam Ghafari, Mahdi Najafi, Mina Ghodsi Yengejeh +3

We investigate the late-time imprints of three dark energy (DE) models, namely, the Chevallier-Polarski-Linder (CPL) parametrization, CDM, and an Omnipotent DE model, on…

astro-ph.CO2025★ 2 cited

Nonlinear Matter Power Spectrum from relativistic -body Simulations: CDM versus CDM

Özgür Akarsu, Eleonora Di Valentino, Jiří Vyskočil +3

We present relativistic -body simulations of a CDM - sign-switching cosmological constant (CC) - scenario under general relativity and compare its nonlinear matter po…

astro-ph.CO2025

Constraining exotic high- reionization histories with Gaussian processes and the Cosmic Microwave Background

Hanyu Cheng, Ziwen Yin, Eleonora Di Valentino +2

The large-angle polarization anisotropies in the Cosmic Microwave Background (CMB) arise from Thomson scattering of CMB photons off free electrons in the post-recombination Univers…