In two f(R) gravity models, a specific matter-curvature interaction shifts the fixed points and can create stable late-time accelerating attractors, but the attractors appear only for parameter values outside the models' observationally viable ranges.
Time-dependent diffusive interactions between dark matter and dark energy in the context of $k-$essence cosmology
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We investigated the scenario of time-dependent diffusive interaction between dark matter and dark energy and showed that such a model can be accommodated within the observations of luminosity distance - redshift data in Supernova Ia (SNe Ia) observations. We obtain constrains on different relevant parameters of this model from the observational data. We consider a homogeneous scalar field $\phi(t)$ driven by a $k-$essence Lagrangian of the from $L = V(\phi)F(X)$ with constant potential $V(\phi) = V$, to describe the dynamics of dark energy in this model. Using the temporal behaviour of the FRW scale factor, the equation of state and total energy density of the dark fluid, extracted from the analysis of SNe Ia (JLA) data, we have obtained the time-dependence of the $k-$essence scalar field and also reconstructed form of the function $F(X)$ in the $k-$essence Lagrangian.
citation-role summary
background 1
citation-polarity summary
fields
gr-qc 1years
2024 1verdicts
REJECT 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Understanding curvature-matter interaction in viable $f(R)$ dark energy models: A dynamical analysis approach
In two f(R) gravity models, a specific matter-curvature interaction shifts the fixed points and can create stable late-time accelerating attractors, but the attractors appear only for parameter values outside the models' observationally viable ranges.