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Dynamical systems analysis of phantom dark energy models

Research paper by Nandan Roy, Nivedita Bhadra

Indexed on: 08 Jun '18Published on: 31 May '18Published in: Journal of Cosmology and Astroparticle Physics



Abstract

In this work, we study the dynamical systems analysis of phantom dark energy models considering five different potentials. From the analysis of these five potentials we have found a general parametrization of the scalar field potentials which is obeyed by many other potentials. Our investigation shows that there is only one fixed point which could be the beginning of the universe. However, future destiny has many possible options. A detailed numerical analysis of the system has been presented. The observed late time behaviour in this analysis shows very good agreement with the recent observations.