A new unified dark sector model and its implications on the $\sigma_8$ and $S_8$ tensions

Understand

In this paper, we introduced the Unified Three-Form Dark Sector (UTFDS) model, a unified dark sector model that combines dark energy and dark matter through a three-form field.

• In this framework, the potential of the three-form field acts as dark matter, while the kinetic term represents dark energy.
• The interaction between dark matter and dark energy is driven by the energy exchange between these two terms.
• Given the dynamical equations of UTFDS, we provide an autonomous system of evolution equations for UTFDS and perform a stability analysis of its fixed points.