10.6k citations · 19.8k across the 136 of their papers we have counts for
143 papers
Passive Identification of Unequal Phase Grid Impedances by Phase-Domain Source Cancellation
Songyang Zhang, Xun Gong, Bo Cao +1
Passive grid impedance estimators that return a single resistance--inductance pair cannot represent a grid whose phase impedances are unequal. This paper identifies a separate pair…
When, Why, and How CMB Compression Fails
Davide Pedrotti, William Giarè, Hanyu Cheng +1
We test when compressed CMB likelihoods can be reliably used to constrain new physics beyond CDM, formulating concrete criteria for \textit{when}, \textit{why}, and \textit{how}…
Testing cosmic acceleration from thermogravity without vacuum energy
Dong Ha Lee, João Magueijo, Carsten van de Bruck +1
We present a first background-level observational test of a thermogravity theory in which the Einstein equations are clipped to a trace-free version, the cosmological constant …
Hunting Thermal Relics in the DESI DR1 Ly Forest
Emanuelly Silva, Artur Ladeira, Rafael C. Nunes +1
We investigate constraints on additional relativistic species and thermal sterile neutrinos using the DESI DR1 one-dimensional Lyman- forest power spectrum, combined with Planck…
Cosmological anatomy of interacting dark energy
Miguel A. Sabogal, Sunny Vagnozzi, Eleonora Di Valentino
Interacting dark energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE), have received significant renewed interest. However, little attention ha…
FOSSIL: A future mission for CMB spectral distortion measurements
N. Aghanim, B. Maffei, J. Aumont +96
We present FOSSIL, a proposed space mission which is designed to deliver unprecedented absolute spectroscopic measurements of the sky intensity over a broad frequency range (50GHz…
Peering Beyond the Veil of Last Scattering: A View of the Universe with CMB Spectral Distortions
Bryce Cyr, Nabila Aghanim, Ethan Baker +37
The frequency spectrum of the cosmic microwave background is the most precise blackbody ever measured in nature, with deviations constrained at the level of almost one part per mil…
Late-Time Emergence of Dark Energy and Its Interaction with Dark Matter
Sibo Zhang, Weiqiang Yang, Supriya Pan +3
We present an interacting scenario between dark energy (DE) and dark matter (DM), where DE has an emergent nature, that means, DE was absent in the early universe but it becomes ef…
Testing Matter Diffusion with Late-Time Cosmological Observations
Alireza Zafari, Mohammad-Hossein Namdar, Luis A. Escamilla +1
We investigate a class of late-time cosmological models derived from the phenomenological framework of variable matter diffusion. In these scenarios, energy-momentum conservation r…
Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation
William Giarè, Dong Ha Lee, Eleonora Di Valentino
We present a systematic reassessment of cosmological constraints beyond CDM by progressively relaxing the assumptions underlying Dark Energy (DE), Curvature, Neutrinos, and Infl…
General Relativistic Entropic Acceleration at the perturbation level: a CLASS implementation and first Boltzmann-code constraints
Simone D'Onofrio, Dong Ha Lee, Eleonora Di Valentino +1
General Relativistic Entropic Acceleration (GREA) attributes the late-time acceleration of the Universe to the entropy growth of the causal cosmological horizon, without a cosmolog…
Evolving Dark Energy Is Vacuum Energy After All
Dong Ha Lee, Carsten van de Bruck, Eleonora Di Valentino +2
We investigate a physically motivated model of dynamical dark energy arising from the non-perturbative topological structure of the Quantum Chromodynamics (QCD) vacuum. The model i…
Model-Independent Indication for a Localized Anomaly in the Late-Time Expansion History
Shibendu Gupta Choudhury, Purba Mukherjee, Eleonora Di Valentino +1
We investigate the late-time expansion history of the Universe using a model-independent spline reconstruction of cosmological distances based on the latest DESI DR2 baryon acousti…
Cosmological Viability of Exponential Infrared Gravity
Mahmoud Hashim, Eleonora Di Valentino, Jackson Levi Said +1
We investigate the cosmological viability of exponential infrared teleparallel gravity using current cosmological observations. This framework realizes late-time cosmic acce…
Non-linear Structure Formation in Planck+DESI Favoured Interacting Dark Energy Cosmologies
Yuejia Zhai, Carsten van de Bruck, Eleonora Di Valentino +2
Following our previous work constraining interacting dark energy (IDE) models, which showed their potential to alleviate the Hubble tension, in this work we investigate the non-lin…
Reconstructing dark energy with fewer assumptions
Daniel A. Kessler, Eleonora Di Valentino, Luis A. Escamilla +1
We perform minimalistic reconstructions of the dark energy density and equation of state using late-time distance measurements. Our methodology avoids assumptions that correlate th…
Are Cosmological Data Excluding Sterile Neutrinos or Only the Fully Thermalized Limit?
Artur Ladeira, Rafael C. Nunes, Eleonora Di Valentino +1
We present a cosmological reassessment of light sterile-neutrino scenarios, examining whether current observations exclude sterile neutrinos as a class or primarily constrain the f…
Negative neutrino mass or negative dark energy?
Cihad Kıbrıs, Willem Elbers, Özgür Akarsu +1
Recent cosmological analyses based on DESI and CMB data have revealed a tension between the inferred sum of neutrino masses and the minimum value allowed by neutrino oscillation ex…
Gamma-Ray Bursts as an Independent High-Redshift Probe of Dark Energy
Maria Giovanna Dainotti, Aleksander Łukasz Lenart, Biagio De Simone +6
Testing the CDM model requires cosmological probes spanning the wide redshift interval between Type Ia Supernovae (SNe Ia, ) and the Cosmic Microwave Background (C…
Late-time Background Constraints on Linear and Non-linear Interacting Dark Energy after DESI DR2
David Figueruelo, Marcel van der Westhuizen, Amare Abebe +1
In this study, we present observational constraints on a class of phenomenological interacting dark energy (IDE) models that admit analytical solutions for the Hubble parameter $H(…
Revisiting the Matter Creation Process: Observational Constraints on Gravitationally Induced Dark Energy and the Hubble Tension
Tiziano Schiavone, Mariaveronica De Angelis, Luis A. Escamilla +2
The Hubble tension and the unknown origin of dark energy motivate the exploration of alternative mechanisms for late-time cosmic acceleration. We investigate gravitationally induce…
Robust Preference for Dark Sector Interactions
Tian-Nuo Li, William Giarè, Guo-Hong Du +4
Recent DESI baryon acoustic oscillation data reveal deviations from CDM cosmology, conventionally attributed to dynamical dark energy (DE). We demonstrate that these deviations…
Cosmological tensions in the era of precision cosmology: Insights from Tensions in Cosmology 2025
Eleonora Di Valentino, Jackson Levi Said, Emmanuel N. Saridakis
The ``Tensions in Cosmology'' series of conferences has been established as one of the main venues where the cosmological community collectively assesses the cracks in the concorda…
Slow-rolling down the curvature: a reassessment of the Planck constraints on inflation in a closed universe
Enrico Specogna, Tatevik Vardanyan, William Giarè +1
We revisit the Cosmic Microwave Background (CMB) constraints on the spatial curvature of the Universe, assessing how they change when the curvature parameter and the primordial inf…