Friday, June 29, 2012

1206.6810 (David Langlois et al.)

Cosmological solutions of massive gravity on de Sitter    [PDF]

David Langlois, Atsushi Naruko
In the framework of the recently proposed models of massive gravity, but defined with respect to a de Sitter reference metric, we obtain new homogeneous and isotropic solutions for arbitrary spatial curvature. These solutions can be classified into three branches. In the first two, the massive gravity terms behave like a cosmological constant. In the third branch, the massive gravity effects can be described by a time evolving effective fluid with rather remarkable features, including the property to behave as a cosmological constant at low energy, when the Hubble parameter decreases below a critical value.
View original: http://arxiv.org/abs/1206.6810

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