Solutions of Quadratic Gravity

In the previous chapter, we showed how the asymptotic gravitational properties affect the metric in the short-scale regime. However, we just sketched the properties of the different solution types without going into detail. In this chapter, instead, we will try to give a complete overview of the global properties of the metric for various solutions of quadratic gravity, leaving some specific topics to the following chapters. These solutions are collected in Fig. 5.1 in the particular case of Einstein-Weyl gravity, where we also stressed the relevance of the Yukawa charges on the solutions setting the same mass M for all the types of solutions. In the last subsection we will also present the specific properties of analytical solutions of General Relativity whenever they are considered as solutions of scale-invariant gravity.