Quantum Gravitational Corrections to Gravity during Inflation

Primordial inflation produces a vast ensemble of cosmological scale gravitons which can affect both the force of gravity and the propagation of gravitational radiation. I show how these effects can be studied by using the graviton self-energy to quantum correct the linearized Einstein equations. I demonstrate that the graviton self-energy has nine structure functions in a general cosmological background and I show how these structure functions change the linearized Einstein equations. I also present explicit one loop results for the nine structure functions on de Sitter background.