Non-canonical 3-form dark energy

TL;DR

This paper develops a 3-form dark energy model that can replicate both matter-dominated and accelerated expansion phases of the universe, revealing multiple inflationary solutions through dynamical systems analysis.

Contribution

It introduces a novel 3-form Lagrangian capable of mimicking dust matter and dark energy, analyzing its cosmological dynamics with a focus on potential effects and initial conditions.

Findings

Identifies viable scenarios for a De Sitter universe in the current epoch.

Discovers solutions with multiple inflationary phases and rapid potential decay.

Demonstrates the model's ability to reproduce key cosmological behaviors.

Abstract

In this study, we meticulously construct a 3-form Lagrangian designed to mimic the dynamics of both dust matter in the past and dark energy driving the acceleration in the present era. A dynamical systems approach is used to investigate the underlying behavior of the cosmological background. By investigating the influence of the potential slope and initial conditions on the dynamical solutions, we identify distinct viable scenarios capable of replicating a De Sitter universe in the present epoch. An intriguing aspect of the model is the existence of solutions describing multiple inflationary phases in which the 3-form self-interacting potential decays rapidly.