An Interacting Two-Fluid Scenario for Dark Energy in FRW Universe

Details An Interacting Two-Fluid Scenario for Dark Energy in FRW Universe An Interacting Two-Fluid Scenario for Dark Energy in FRW Universe

2010-11-17

arxiv.org/abs/1011.3940v2

Chin. Phys. Lett. Vol. 28, No. 3 (2011), 039801-4

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, accepted for publication in Chinese Physics Letters. Unlike the previous version the new one contains the time depen

Scientific paper

10.1088/0256-307X/28/3/039801

We study the evolution of the dark energy parameter within the scope of a spatially flat and isotropic Friedmann-Robertson-Walker (FRW) model filled with barotropic fluid and dark energy. To obtain the deterministic solution we choose the scale factor $a(t) = \sqrt{t e^{t}}$ which yields a time dependent deceleration parameter (DP). In doing so we consider the case minimally coupled with dark energy to the perfect fluid as well as direct interaction with it.

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