3 papers
astro-ph.CO2025
DESIgning concordant distances in the age of precision cosmology: the impact of density fluctuations
David Camarena, Kylar Greene, John Houghteling +1
Discrepancies between distance measurements and CDM predictions reveal notable features in the distance-redshift relation, possibly suggesting the presence of an evolving dark e…
astro-ph.CO2024
Observable CMB B-modes from Cosmological Phase Transitions
Kylar Greene, Aurora Ireland, Gordan Krnjaic +1
A B-mode polarization signal in the cosmic microwave background (CMB) is widely regarded as smoking gun evidence for gravitational waves produced during inflation. Here, we demonst…
astro-ph.CO2024
A Ratio-Preserving Approach to Cosmological Concordance
Kylar Greene, Francis-Yan Cyr-Racine
Cosmological observables are particularly sensitive to key ratios of energy densities and rates, both today and at earlier epochs of the Universe. Well-known examples include the p…