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Realizing late-time cosmology in the context of Dynamical Stability Approach

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arxiv 2307.04633 v1 pith:HAVHRFUC submitted 2023-07-04 gr-qc astro-ph.CO

Realizing late-time cosmology in the context of Dynamical Stability Approach

classification gr-qc astro-ph.CO
keywords fieldscalarapproachcoupleddynamicallagrangianlate-timemodels
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We examine the scenario of non-minimally coupled relativistic fluid and $k$-essence scalar field in a flat Friedmann-Lemaitre-Robertson-Walker universe. By adding a non-minimal coupling term in the Lagrangian level, we study the variation of Lagrangian with respect to independent variables, which produces modified scalar field and Friedmann equations. Using dynamical stability approach in different types of interaction models with two types of scalar field potential, we explore this coupled framework. Implementing detailed analysis, we can conclude our models can able to produce stable late-time cosmic acceleration.

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Cited by 1 Pith paper

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