Phase Space Analysis and Thermodynamics of Interacting Umami Chaplygin gas in FRW Universe

Abstract

In this work interacting Umami Chaplygin gas has been studied in flat FRW model of universe in context of it's thermodynamic and dynamical behaviour. In particular, considering Umami fluid as dark energy interacting with dark matter, irreversible thermodynamics has been studied both for apparent and event horizon as bounding horizon in two separate cases. Also the model has been investigated in purview of dynamical systems analysis by converting the cosmological evolution equations to an autonomous system of ordinary differential equations. With some restrictions on model parameter $\omega$ and coupling parameter $\lambda$, some cosmologically interesting critical points describing late time accelerated evolution of the universe attracted by cosmological constant and accelerated scaling attractor in quintessence era have been found to alleviate coincidence problem.

Accept 16 pages, 8 figures

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Cited by in corpus (8)

• A study of interacting scalar field model from the perspective of the dynamical systems theory
• Dynamical system analysis of logotropic dark fluid with a power law in the rest-mass energy density
• Dynamical stability of an interacting quintessence with varying-mass dark matter particles in Lyra manifold
• Dynamical systems analysis of an interacting scalar field model in an anisotropic universe
• Interacting Holographic dark energy with matter creation: A dynamical system analysis
• Effects of particle creation rate in two-fluid interacting cosmologies
• Dynamical systems analysis of a cosmological model with interacting Umami Chaplygin fluid in adiabatic particle creation mechanism: Some bouncing features
• Phase space analysis and cosmography of a two-fluid cosmological model