Action growth for black holes in modified gravity

Understand

The general form of the action growth for a large class of static black hole solutions in modified gravity which includes $F(R)$-gravity models is computed.

• The cases of black hole solutions with non vanishing Ricci curvature are also considered, generalizing the results previously found and valid only for constant curvature black holes.
• An argument is put forward to provide a physical interpretation of the results.