1 citations · 1 across the 1 of their papers we have counts for
3 papers
Is the cosmological dark sector better modeled by a generalized Chaplygin gas or by a scalar field?
S. del Campo, J. C. Fabris, R. Herrera +1
Both scalar fields and (generalized) Chaplygin gases have been widely used separately to characterize the dark sector of the Universe. Here we investigate the cosmological backgrou…
Classically and Quantum stable Emergent Universe from Conservation Laws
Sergio del Campo, Eduardo I. Guendelman, Ramon Herrera +1
It has been recently pointed out by Mithani-Vilenkin that certain emergent universe scenarios which are classically stable are nevertheless unstable semiclassically to collapse. He…
Power law inflation with a non-minimally coupled scalar field in light of Planck and BICEP2 data: The exact versus slow roll results
Sergio del Campo, Carlos Gonzalez, Ramon Herrera
We study power law inflation in the context of non-minimally coupled to the scalar curvature. We analyze the inflationary solutions under an exact analysis and also in the slow rol…