Late universe dynamics with scale-independent linear couplings in the dark sector

Claudia Quercellini, Marco Bruni, Amedeo Balbi +1

We explore the dynamics of cosmological models with two coupled dark components with energy densities ${\rho }_A$ and ${\rho }_B$. We assume that the coupling is of the form $Q=Hq({\rho }_A,{\rho }_B)$, s…