Phantom cosmology with general potentials

TL;DR

This paper provides a comprehensive analysis of the dynamics of a flat universe dominated by a phantom field, identifying late-time attractors like Big Rip and de Sitter without specifying the potential form.

Contribution

It offers a unified phase space analysis for phantom cosmology with general potentials, recovering known results and predicting new scenarios.

Findings

Identification of late-time attractors such as Big Rip and de Sitter

General conditions on the potential shape determine the universe's fate

Recovery of many known results in phantom cosmology

Abstract

We present a unified treatment of the phase space of a spatially flat homogeneous and isotropic universe dominated by a phantom field. Results on the dynamics and the late time attractors (Big Rip, de Sitter, etc.) are derived without specifying the form of the phantom potential, using only general assumptions on its shape. Many results found in the literature are quickly recovered and predictions are made for new scenarios.