Stability of the curvature perturbation in dark sectors' mutual interacting models

Physics Letters B, no. 1 (2009): 139-145

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We consider perturbations in a cosmological model with a small coupling between dark energy and dark matter. We prove that the stability of the curvature perturbation depends on the type of coupling between dark sectors. When the dark energy is of quintessence type, if the coupling is proportional to the dark matter energy density, it wil...更多

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