2014/04/07 by I. Brevik, V. V. Obukhov, A. V. Timoshkin · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc
paper · pdf · doi:10.1142/s0217732314500783
published as Mod. Phys. Lett. A, Vol. 29, No.1115 (2014) 1450078 · 13 pages latex, no figures; to appear in Mod. Phys. Lett. A
arxiv created 2014/04/07 · arxiv updated 2014/05/07
We investigate cosmological models with a linear inhomogeneous time-dependent equation of state for the dark energy, coupled with dark matter, leading to a bounce cosmology. Equivalent descriptions in terms of the equation-of-state parameters for an exponential, a power-law, or a double exponential form of the scale factor a is obtained. The stability of the solutions is explored, by considering small perturbations around the critical points for the bounce in the early and in the late-time universe.