Dynamics of interacting dark energy

By Gabriela Caldera-Cabral, R. Maartens, L. Arturo Ureña‐López. 2008

233 citations recorded by the source corpus.

It is possible that there is an exchange of energy within the dark sector of Cosmology. We consider two broad classes of interacting models where the energy exchange is a linear combination of the dark sector densities. We give general conditions on the parameters in both classes to avoid unphysical behavior, such as negative energy densities and the appearance of instabilities in their linear perturbations.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b6f350920951ff77b460e72fb0fbbc00ded2507f

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Citations in the corpus

Observational constraints on an interacting dark energy model (2009, unknown): “…(2008); La Vacca & Colombo (2008); He et al. (2009); Bean et al. (2008); Corasaniti (2008); Chongchitnan (2009); Jackson et al. (2009); Gavela et al. (2009); La Vacca et al. (2009); He et al. (2009); Caldera-Cabral et al. (2009); He et al. (2009); Koyama et al. (2009); Kristiansen et al. (2009).”
The growth of structure in interacting dark energy models (2009, background): “The case Γc < 0 (with wa = 0) avoids negative dark energy density, but there is no attractor solution; by contrast, there is a late-time attractor when Γc > 0 [29].”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, methodology): “Alternatively, the coupling can be introduced by choosing directly a covariant stressenergy tensor, treating dark energy as a fluid in the absence of a starting action [818, 1189, 260, 1048, 1188, 811, 512, 259, 513].”