299 citations · 331 across the 8 of their papers we have counts for
4 papers · 1 filter
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…
Dynamical dark energy with AdS-dS transitions vs. Baryon Acoustic Oscillations at 2.3-2.4
Özgür Akarsu, Maxim Eingorn, Leandros Perivolaropoulos +2
In this paper, written in memory of Alexei Starobinsky, we discuss the observational viability of the Ph-CDM model - a dynamical dark energy scenario based on a phantom…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Dynamical dark energy with AdS-to-dS and dS-to-dS transitions: Implications for the tension
Özgür Akarsu, Leandros Perivolaropoulos, Anna Tsikoundoura +2
We investigate the dynamics and cosmological implications of dark energy (DE), modeled as a scalar field with a hyperbolic tangent potential that induces a smooth shift in the effe…