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arXiv · 1503.08712

Dynamics of interacting quintessence

M. Shahalam·S. D. Pathak·M. M. Verma·M. Yu. Khlopov·R. Myrzakulov
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Abstract

In this paper, we investigate coupled quintessence with scaling potential assuming specific forms of the coupling as $A$ namely, $α\dot{ρ_m}$, $β\dot{ρ_ϕ}$ and $σ(\dot{ρ_m}+\dot{ρ_ϕ})$, and present phase space analysis for three different interacting models. We focus on the attractor solutions that can give rise to late time acceleration with $Ω_{DE}/Ω_{DM}$ of order unity in order to alleviate the coincidence problem.

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M. Shahalam, S. D. Pathak, M. M. Verma, M. Yu. Khlopov, R. Myrzakulov. 2015-08-28. Dynamics of interacting quintessence. https://doi.org/10.1140/epjc%2Fs10052-015-3608-1

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