Coupled tachyonic dark energy: a dynamical analysis

Abstract

In this paper we present a dynamical analysis for a coupled tachyonic dark energy with dark matter. The tachyonic field $\varphi$ is considered in the presence of barothropic fluids (matter and radiation) and the autonomous system due to the evolution equations is studied. The three cosmological eras (radiation, matter and dark energy) are described through the critical points, for a generic potential $V(\varphi )$.

14 pages, 5 figures, version to be published in IJMPD

References in corpus (4)

• Dynamics of dark energy
• Challenges for scaling cosmologies
• A Field Theory Model for Dark Matter and Dark Energy in Interaction
• Inflation and Dark Energy from a Scalar Field in Supergravity

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