Dark interactions and cosmological fine-tuning

By M. Quartin, M. Calvão, S. E. Jorás, R. Reis, I. Waga. 2008

167 citations recorded by the source corpus.

Cosmological models involving an interaction between dark matter and dark energy have been proposed in order to solve the so-called coincidence problem. Different forms of coupling have been studied, but there have been claims that observational data seem to narrow (some of) them down to something annoyingly close to the ΛCDM (CDM: cold dark matter) model, thus greatly reducing their ability to deal with the problem in the first place. The smallness problem of the initial energy density of dark energy has also been a target of cosmological models in recent years. Making use of a moderately general coupling scheme, this paper aims to unite these different approaches and shed some light on whether this class of models has any true perspective in suppressing the aforementioned issues that plague our current understanding of the universe, in a quantitative and unambiguous way.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/7ab531c0a5df63f3f1012327ca18c29956e45732

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Citations in the corpus

Observational constraints on an interacting dark energy model (2009, unknown): “…et al. (2003); Olivares et al. (2005); Koivisto (2005); Sadjadi & Alimohammadi (2006); Guo et al. (2007); Boehmer et al. (2008); He & Wang (2008); Quartin et al. (2008); Pereira & Jesus (2009); Quercellini et al. (2008); Valiviita et al. (2008); He et al. (2009); Bean et al. (2008); Chongchitnan…”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, methodology): “Various choices of couplings have been investigated in the literature, including constant β [45, 818, 47, 690, 557, 990, 992, 947] and varying couplings [102], with effects on Supernovæ, CMB and cross-correlation of the CMB and LSS [152, 62, 47, 59, 720, 711, 810].”
The growth of structure in interacting dark energy models (2009, unknown): “[7–28]).”
Hydrodynamical N-body simulations of coupled dark energy cosmologies (2008, background): “The existence of such a coupling could provide a unique handle for a deeper understanding of the DE problem (Anderson & Carroll 1997; Mangano, Miele & Pettorino 2003; Gromov, Baryshev & Teerikorpi 2004; Brookfield, van de Bruck & Hall 2008; Quartin et al. 2008).”