An Interacting Two-Fluid Scenario for Dark Energy in an FRW Universe
Hassan AmirhashchiDepartment of Physics, Islamic Azad University, Mahshahr Branch, Mahshahr, IranAnirudh PradhanDepartment of Mathematics, Hindu Post-Graduate College, Zamania-232 331, Ghazipur, IndiaBijan SahaLaboratory of Information Technologies, Joint Institute for Nuclear Research, 141980 Dubna, Russia
2011en
ABI
Abstract
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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