High Energy Physics Seminars

The weak-field limit of black hole scattering is an important problem in gravitational physics. In recent years, the high energy community has been contributing new and efficient methods to compute quantities of interest such as the post-Minkowskian expansion (i.e, expansion in GM/r (where c is set to one)) of the effective gravitational potential. In this talk, we will discuss some formal developments regarding two different methods from the high energy side, namely the eikonal method and the worldline method. We will see what these methods are, and show that they are actually equivalent. This equivalence allows us to prove a conjecture about the eikonal method (known as the "exponentiation of the eikonal phase") to all orders in the GM/r expansion.