3 papers
astro-ph.CO2026
Early against Late: A contrast on dark energy in the light of DESI DR2
Miguel A. Zapata, Karim Carrion, Gabriela Garcia-Arroyo
Recent findings from Dark Energy Spectroscopic Instrument (DESI) Baryon Acoustic Oscillation (BAO) measurements, combined with Type Ia supernovae and Cosmic Microwave Background (C…
astro-ph.CO2026
Background-level reconstruction of scalar-field potentials from dark-energy histories and comparison with analytic potential families
Shahnawaz A. Adil, Miguel A. Zapata, Özgür Akarsu +1
We present a unified \emph{background-level} framework that maps a prescribed late-time dark-energy density history onto an effective scalar-field description in a…
astro-ph.CO2025
How Holographic is the Dark Energy? A Spline Nodal reconstruction approach
Miguel A. Zapata, Gabriela Garcia-Arroyo, Shahnawaz A. Adil +1
In this work, we explore the generalized holographic dark energy (HDE) scenario. We relate the HDE density to the future-horizon scale via a non-parametric function, which is recon…