• Little rip phenomena from coupled dark energy with quadratic equation of state with time-dependent parameters

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      https://www.ias.ac.in/article/fulltext/joaa/042/0094

    • Keywords

       

      Cosmology models; Dark energy; Dark matter; Little rip (LR); Pseudo rip (PR); Quadratic equation of state (EOS).

    • Abstract

       

      The purpose of this article was to examine the behavior of the Little rip (LR) and Pseudo rip (PR) models with two interacting ideal fluids related to dark energy and dark matter with the quadratic equation of state with time-dependent parameters $\omega(t)$ and $\Lambda(t)$ in flat Friedmann–Lemaitre–Robertson–Walker cosmological model. In this article, the gravitational equations of motion for dark matter have been solved. The equation of the state parameter $\omega(t)\to -1$ has been discovered. Also, discovered $\Lambda(t)\to 1$ as $t\to \infty$, it shows that the future behavior of our universe depends on specific model parameters $\omega(t)$ and $\Lambda(t)$ for the coupled dark energy. In this formalism, the properties of the early universe are pointed out.

    • Author Affiliations

       

      R. D. SHELOTE1 RUPALI WANJARI2

      1. Department of Mathematics, Sant Gadge Maharaj Mahavidyalaya, Hingna, Nagpur, India.
      2. Department of Mathematics, DRB Sindhu Mahavidyalaya, Nagpur, India.
    • Dates

       
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