Dark coupling

Abstract

The two dark sectors of the universe - dark matter and dark energy - may interact with each other. Background and linear density perturbation evolution equations are developed for a generic coupling. We then establish the general conditions necessary to obtain models free from early time non-adiabatic instabilities. As an application, we consider a viable universe in which the interaction strength is proportional to the dark energy density. The scenario does not exhibit "phantom crossing" and is free from instabilities, including early ones. A sizeable interaction strength is compatible with combined WMAP, HST, SN, LSS and H(z) data. Neutrino mass and/or cosmic curvature are allowed to be larger than in non-interacting models. Our analysis sheds light as well on unstable scenarios previously proposed.

30 pages, 10 figures

References in corpus (23)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Massive neutrinos and cosmology
• Large-scale instability in interacting dark energy and dark matter fluids
• Phantom crossing, equation-of-state singularities, and local gravity constraints in f(R) models
• The shape of the SDSS DR5 galaxy power spectrum
• Dynamics of interacting dark energy
• Observational Constraints on Dark Energy and Cosmic Curvature
• Effects of the interaction between dark energy and dark matter on cosmological parameters
• Interacting Dark Energy and Dark Matter: observational Constraints from Cosmological Parameters
• Stability of the curvature perturbation in dark sectors' mutual interacting models
• Dark Interactions and Cosmological Fine-Tuning
• Dynamical Dark Energy or Simply Cosmic Curvature?
• Constraints on scalar-tensor models of dark energy from observational and local gravity tests
• Interacting models may be key to solve the cosmic coincidence problem
• Matter density perturbations in interacting quintessence models
• Observational constraints on the dark energy and dark matter mutual coupling
• Adiabatic instability in coupled dark energy-dark matter models
• On the large-scale instability in interacting dark energy and dark matter fluids
• Cosmological Perturbations in Models of Coupled Dark Energy
• Higher neutrino mass allowed if Cold Dark Matter and Dark Energy are coupled

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