2011/07/31 by A. O. Barvinsky
Physics and Astronomy · #hep-th #astro-ph.CO #gr-qc
paper · pdf · doi:10.1016/j.physletb.2012.02.075
published as Phys. Lett. B 710 (2012) 12-16 · 9 pages, LaTeX, final version published in Phys. Lett. B: title changed, discussion of Schwinger-Keldysh technique vs Euclidean field theory extended, presentation improved, references added. arXiv admin note: substantial text overlap with arXiv:1112.4340
arxiv created 2012/04/15 · arxiv updated 2015/05/28
We suggest a class of generally covariant ghost-free nonlocal gravity models generating de Sitter or Anti-de Sitter background with an arbitrary value of the effective cosmological constant and featuring a mechanism of dark matter simulation. These models interpolate between the general relativistic phase on a flat spacetime background and their strongly coupled infrared (Anti)-de Sitter phase with two propagating massless graviton modes.