From an energetic point of view, the concept of correlation energy is defined as the difference between the exact ab initio ground-state energy and the ground-state energy from Hartree-Fock (HF) theory. In other words, it results from electron-electron interactions that cannot be captured by the mean field approximation. Correlation energy can be qualitatively divided into two different types: dynamic and static . Dynamic correlation relates to how electrons repel one another and can be addressed by incorporating higher-order excited state contributions. Static correlation, on the other hand, accounts for the equivalence of configurations that are nearly degenerate with respect to the reference state. While correlation energy provides valuable insights in light of energy decomposition schemes it does not allow for a deeper analysis of how different parts of the system are interconnected and how information is shared.