301 citations · 3.3k across the 70 of their papers we have counts for
71 papers
Particle Production from Inhomogeneities: the off-shell side of gravitational waves
Michele Redi, Andrea Tesi
We continue the study of particle production from gravitational inhomogeneities in the early Universe. Focusing on sources active on sub-horizon scales, we derive general expressio…
The Too Visible QCD Axion
Luca Di Luzio, Michele Redi, Alessandro Strumia +2
Murayama proposed a GeV-scale axion theory where the up-quark mass term is generated dynamically by the QCD chiral condensate, spontaneously breaking a Peccei-Quinn symmetry. It pr…
Mimicking Phantom Dark Energy with Evolving Dark Matter Mass
Lorenzo La Penna, Alessio Notari, Michele Redi
We present a general method to reproduce a given cosmological background through energy exchange between dark energy (DE) and dark matter (DM). This can be simply realized with a s…
Particle production from inhomogeneities: general metric perturbations
Raghuveer Garani, Michele Redi, Andrea Tesi
We present universal formulas for particle production from gravitational inhomogeneities. In the massless limit the result is strikingly simple and completely determined by the two…
BAO vs. SN evidence for evolving dark energy
Alessio Notari, Michele Redi, Andrea Tesi
We critically review the evidence for time-varying dark energy from recent Baryon Acoustic Oscillations (BAO) and Supernova (SN) observations. First, we show that such evidence is…
Stochastic Dark Matter from Curvature Perturbations
Raghuveer Garani, Michele Redi, Andrea Tesi
We investigate the production of dark matter from curvature perturbations produced during inflation or in standard cosmology, for example during first order phase transitions. Pert…