Analytic Infinite Derivative Gravity

This lecture delves into the concept of Analytic Infinite Derivative (AID) gravity, exploring the construction of propagators in Minkowski background, the appearance of infinite derivatives in gravity theories, and the action to study linear perturbations. The instructor discusses the implications of infinite derivatives in gravity, the UV completeness problem, and the potential of AID gravity in addressing quantum gravity. The lecture also covers the application of AID quadratic action in various scenarios, such as accommodating interesting solutions and ghost-free bouncing scenarios. Furthermore, it explores the connection with String Field Theory, physical propagators around Minkowski, and the implications of AID gravity on power spectra and non-Gaussianities.