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- W4287392246 abstract "In this work, considering the background dynamics of flat Friedmann-Lemaitre-Robertson-Walker(FLRW) model of the universe, we investigate a non-canonical scalar field model as dark energy candidate which interacting with the pressureless dust as dark matter in view of dynamical systems analysis. Two interactions from phenomenological point of view are chosen: one is depending on Hubble parameter $H$, another is local, independent of Hubble parameter. In Interaction model 1, an inverse square form of potential as well as coupling function associated with scalar field is chosen and a two dimensional autonomous system is obtained. From the 2D autonomous system, we obtain scalar field dominated solutions representing late time accelerated evolution of the universe. Late time scaling solutions are also realized by the accelerated evolution of the universe attracted in quintessence era. Center Manifold Theory can provide the sufficient conditions on model parameters such that the de Sitter like solutions can be stable attractor at late time in this model. In the Interaction model 2, potential as well as coupling function are considered to be evolved exponentially on scalar field and as a result of which a four dimensional autonomous system is achieved. From the analysis of 4D system, we obtain non-hyperbolic sets of critical points which are analyzed by the Center Manifold Theory. In this model, de Sitter like solutions represent the transient evolution of the universe." @default.
- W4287392246 created "2022-07-25" @default.
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- W4287392246 date "2021-01-09" @default.
- W4287392246 modified "2023-10-15" @default.
- W4287392246 title "Dynamical analysis of interacting non-canonical scalar field model" @default.
- W4287392246 doi "https://doi.org/10.48550/arxiv.2101.04496" @default.
- W4287392246 hasPublicationYear "2021" @default.
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