619 citations · 4.2k across the 87 of their papers we have counts for
87 papers
On sign-changeable interaction in FLRW cosmology
Fabiola Arevalo, Antonella Cid, Luis P. Chimento +1
We investigate an interacting two-fluid model in a spatially flat Friedmann-Lemaître-Robertson-Walker (FLRW) Universe, when the energy transfer between these two dark components is…
Finite time future singularities in the interacting dark sector
Mauricio Cataldo, Luis P. Chimento, Martín G. Richarte
We construct a piecewise model that gives a physical viable realization of finite-time future singularity for a spatially flat Friedmann-Robertson-Walker universe within the intera…
Big brake singularity is accommodated as an exotic quintessence field
Luis P. Chimento, Martín G. Richarte
We describe a big brake singularity in terms of a modified Chaplygin gas equation of state $p=(\ga_{m}-1)ρ+\al\ga_{m}ρ^{-n}$, accommodate this late-time event as an exotic quintess…
Interacting realization of cosmological singularities with variable vacuum energy
Luis P. Chimento, Martín G. Richarte
We examine an interacting dark matter--variable vacuum energy model for a spatially flat Friedmann-Roberston-Walker spacetime, focusing on the appearance of cosmological singularit…
Interacting vacuum energy in the dark sector
L. P. Chimento, S. Carneiro
We analyse three cosmological scenarios with interaction in the dark sector, which are particular cases of a general expression for the energy flux from vacuum to matter. In the fi…
Interacting dark sector with transversal interaction
Luis P. Chimento, Martín G. Richarte
We investigate the interacting dark sector composed of dark matter, dark energy, and dark radiation for a spatially flat Friedmann-Robertson-Walker (FRW) background by introducing…