61 citations · 63 across the 5 of their papers we have counts for
6 papers
Primordial Sharp Features through the Nonlinear Regime of Structure Formation
Clément Stahl, Denis Werth, Vivian Poulin
Sudden violations of the slow-roll regime during inflation, a natural prediction of many UV-complete inflationary models, give rise to sharp features in the primordial power spectr…
A primordial origin to cosmic tensions: towards reconciling and with early dark energy and scale-dependent primordial non-Gaussianities
Clément Stahl, Vivian Poulin, Benoit Famaey +1
The Hubble () tension between direct measurements of the expansion rate and the prediction of the CDM cosmological model calibrated on the Cosmic Microwave Background (CMB)…
A cosmic degeneracy story: structure formation with warm dark matter and scale-dependent primordial non-Gaussianities
Clément Stahl, Benoit Famaey, Rodrigo Ibata +2
It has been recently shown that cosmological models with scale-dependent primordial non-Gaussianities (sPNG) could provide a possible path to solve current cosmic tensions. Moreove…
Scale-dependent local primordial non-Gaussianity as a solution to the tension
Clément Stahl, Benoit Famaey, Rodrigo Ibata +3
For the last decade, several probes have pointed to a cosmological tension between the amplitude of density fluctuations extrapolated from the cosmic microwave background within th…
From inflation to dark matter halo profiles: the impact of primordial non-Gaussianities on the central density cusp
Clément Stahl, Nicolas Mai, Benoit Famaey +2
It has recently been shown that local primordial non-Gaussianities (PNG) with significant amplitude (), at small (Mpc) scales, can help in forming simulated…
Comparison of primordial tensor power spectra from the deformed algebra and dressed metric approaches in loop quantum cosmology
B. Bolliet, J. Grain, C. Stahl +2
Loop quantum cosmology tries to capture the main ideas of loop quantum gravity and to apply them to the Universe as a whole. Two main approaches within this framework have been con…