A Note on the Feynman Lectures on Gravitation
Published: Sep 15, 2025
Last Updated: Sep 15, 2025
Authors:Satoshi Nakajima
Abstract
Following Feynman's lectures on gravitation, we consider the theory of the gravitational (massless spin-2) field in flat spacetime and present the third- and fourth-order Lagrangian densities for the gravitational field. In particular, we present detailed calculations for the third-order Lagrangian density.