1Department of Physics, Islamic Azad University, Mahshahr Branch, Mahshahr, Iran 2Department of Mathematics, Hindu Post-Graduate College, Zamania-232 331, Ghazipur, India 3Laboratory of Information Technologies, Joint Institute for Nuclear Research, 141980 Dubna, Russia
An Interacting Two-Fluid Scenario for Dark Energy in an FRW Universe
1Department of Physics, Islamic Azad University, Mahshahr Branch, Mahshahr, Iran 2Department of Mathematics, Hindu Post-Graduate College, Zamania-232 331, Ghazipur, India 3Laboratory of Information Technologies, Joint Institute for Nuclear Research, 141980 Dubna, Russia
摘要We study the evolution of the dark energy parameter within the scope of a spatially homogeneous 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) =√tet, 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.
Abstract：We study the evolution of the dark energy parameter within the scope of a spatially homogeneous 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) =√tet, 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.
Hassan Amirhashchi;Anirudh Pradhan;**;Bijan Saha
. An Interacting Two-Fluid Scenario for Dark Energy in an FRW Universe[J]. 中国物理快报, 2011, 28(3): 39801-039801.
Hassan Amirhashchi, Anirudh Pradhan, **, Bijan Saha
. An Interacting Two-Fluid Scenario for Dark Energy in an FRW Universe. Chin. Phys. Lett., 2011, 28(3): 39801-039801.
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2011, Vol. 28 
