Cosmological implications of Bumblebee vector models

Understand

The Bumblebee Model of spontaneous Lorentz symmetry breaking is explored in a cosmological context, considering a single non-zero time component for the vector field.

• The relevant dynamic equations for the evolution of the Universe are derived and its properties and physical significance studied.
• We conclude that a late-time de Sitter expansion of the Universe can be replicated, and attempt to constrain the parameter of the potential driving the spontaneous symmetry breaking.