Cosmology of generalized modified gravity models

By S. Carroll, Antonio de Felice, V. Duvvuri, D. Easson, M. Trodden, M. Turner. Physical Review D, 2004

519 citations recorded by the source corpus.

We consider general curvature-invariant modifications of the Einstein-Hilbert action that become important only in regions of extremely low space-time curvature. We investigate the far future evolution of the Universe in such models, examining the possibilities for cosmic acceleration and other ultimate destinies. The models generically possess de Sitter space as an unstable solution and exhibit an interesting set of attractor solutions which, in some cases, provide alternatives to dark energy models.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/dc3b6493a09918659c9888fd7c0dd4848b0531cd

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Citations in the corpus

Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces (2016, methodology): “…Hu & Sawicki (2007a) f (R) model that exhibits the chameleon screening mechanism. f (R) models MNRAS 000, 1–18 (2016) (Buchdahl 1970; Nojiri & Odintsov 2003; Carroll et al. 2005) are derived from a modified Einstein–Hilbert action, in which a general f (R) is added to the standard linear R term.”
Cosmological constraints on f(R) gravity theories within the Palatini approach (2005, background): “…and they can with some degree of success account for the observations (Lue et al. 2004a,b; Lue 2003; Bento et al. 2002, 2003; Deffayet et al. 2002; Carroll et al. 2005; Multamaki et al. 2003, 2004; Koivisto et al. 2005; Elgaroy & Multamaki 2005; Amarzguioui et al. 2005; Multamaki & Elgaroy 2004).”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, unknown): “6) involves adding to the usual Einstein-Hilbert term negative powers of the polynomial aR(2) + bP + cQ, where P ≡ RμνR and Q = RμναβR μναβ [288].”
ECOSMOG: an Efficient COde for Simulating MOdified Gravity (2011, background): “, and some examples of modified gravity models are the f(R) gravity [8], scalar-tensor theory [9] and DGP model [10] (for some recent review see, e.”
Testing gravity using cosmic voids (2014, methodology): “2.1 Thef(R) gravity model The f(R) gravity model (Carroll et al. 2005) generalises GR by simply replacing the Ricci scalarR in the standard Einstein-Hilbert action by an algebraic functionf(R) (see e.g. Sotiriou & Faraoni 2010; De Felice & Tsujikawa 2010, for some recent reviews): S = ∫ d4x √−g {…”
Cosmic dynamics in the era of Extremely Large Telescopes (2008, background): “Alternatively, instead of modifying the stress–energy tensor one can also modify gravity itself to explain the acceleration (e.g. Deffayet, Dvali & Gabadadze 2000; Freese & Lewis 2002; Carroll et al. 2005).”