A brief introduction to extended gravity and connections to dark energy: Illustrated with scalar field examples
SciPost Phys. Lect. Notes 41 (2022) · published 15 March 2022
These lecture notes provide a brief introduction to extensions of gravity and their connections to dark energy. Due to time and space limitations this is not a comprehensive review of the field. Instead, I aim to introduce key concepts and ideas in this area through a series of examples based on scalar field extensions of gravity and models of dark energy.