TL;DR
This paper investigates the long-term behavior of dark energy models involving matter and an interacting vacuum, concluding that observational data supports a scenario with negligible matter-vacuum interaction, modeled via generalized Chaplygin gas.
Contribution
It demonstrates that current observations favor a model where dark energy interacts minimally with matter, using a generalized Chaplygin gas framework.
Findings
Interaction diminishes asymptotically to zero
Model aligns with observational constraints
Supports generalized Chaplygin gas as dark energy
Abstract
We study the asymptotic dynamics of dark energy as a mixture of pressureless matter and an interacting vacuum component. We find that the only dynamics compatible with current observational data favors an asymptotically vanishing matter-vacuum energy interaction in a model where dark energy is simulated by a generalized Chaplygin gas cosmology
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