3 papers
astro-ph.CO2026
Cosmological evolution of interacting dark energy with a CPL equation of state
Gerald Neumann, Nelson Videla, Dorian Araya
This paper examines interacting dark energy models within the Chevallier-Polarski-Linder (CPL) parametrization, emphasizing both theoretical structure and observational viability.…
astro-ph.CO2025
Cosmological dynamics and observational constraints of an interacting early scalar field coupled to radiation
Dorian Araya, Felipe Herrera, Nelson Videla
We study the cosmic evolution of an interacting scalar field radiation model, in which a minimally coupled scalar field exchanges energy with the radiation sector through an expone…
gr-qc2025
Cosmic slowing down of acceleration with the Chaplygin-Jacobi gas as a dark fluid?
J. A. S. Fortunato, W. S. Hipolito-Ricaldi, N. Videla +1
A particular generalization of the Chaplygin inflationary model, using the formalism of Hamilton-Jacobi and elliptic functions, results in a more general non-linear Chaplygin-type…