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arxiv: 1603.08299 · v2 · submitted 2016-03-28 · 🌌 astro-ph.CO · gr-qc· hep-th

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Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures

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classification 🌌 astro-ph.CO gr-qchep-th
keywords darkdatacosmologicalcurrentenergyinteractionmattermodels
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Models where Dark Matter and Dark Energy interact with each other have been proposed to solve the coincidence problem. We review the motivations underlying the need to introduce such interaction, its influence on the background dynamics and how it modifies the evolution of linear perturbations. We test models using the most recent observational data and we find that the interaction is compatible with the current astronomical and cosmological data. Finally, we describe the forthcoming data sets from current and future facilities that are being constructed or designed that will allow a clearer understanding of the physics of the dark sector.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. A No-Go Theorem for Topological Bridges with Matter-Vacuum Coupling

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  2. Generalizing the CPL Parametrization through Dark Sector Interaction

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    Dynamical couplings in interacting dark energy models reduce deviations from LambdaCDM to 1.3-1.5 sigma and yield no Bayesian preference over the standard model.

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    gr-qc 2026-04 unverdicted novelty 4.0

    Interacting vacuum energy relaxes the pressure gradient inside stars, allowing finite central pressure and compactness beyond the Buchdahl bound for suitable coupling strengths.