2 papers
gr-qc2026
Reconstructing the slope of a nearly flat quintessence potential from cosmography
Saikat Chakraborty, Peter K. S. Dunsby, Robert J. Scherrer
We revisit thawing quintessence models with nearly flat scalar-field potentials using a cosmographic framework. Earlier work indicates that the cosmographic reconstruction of the s…
astro-ph.CO2023
Big bang nucleosynthesis with rapidly varying G
Anish Giri, Robert J. Scherrer
We examine big bang nucleosynthesis (BBN) in models with a time-varying gravitational constant , when this time variation is rapid on the scale of the expansion rate , i.e, $…