Spherically Symmetric Solutions of Light Galileon (original) (raw)

2015, International Journal of Theoretical Physics

AI-generated Abstract

The study investigates light Galileon models characterized by translational shift symmetry. It establishes that these Galileons can be identified as modified gravity theories defined in terms of the curvature-matter coupling f(R, RμνTmμν). The research also provides exact spherically symmetric solutions, evidencing a singularity at r=0, and shows that these solutions maintain a non-divergent current vector norm. Furthermore, a theorem is proposed demonstrating the equivalence of the examined Galileon Lagrangian and the modified gravity framework, portraying Galileons as scalar fields coupled to gravity.