Wilson line approach to gravity in the high energy limit

TL;DR

This paper investigates the high energy behavior of gravitational scattering using Wilson lines, clarifying graviton Reggeization, the eikonal phase, and finite corrections, with implications for supergravity and gauge-gravity relations.

Contribution

It introduces a Wilson line framework to analyze high energy gravity, elucidating graviton Reggeization and its connection to the eikonal phase, extending understanding of gauge-gravity duality.

Findings

Clarified the nature of graviton Reggeization in high energy limit.

Analyzed the interplay between Reggeization and the eikonal phase.

Discussed finite corrections to gravitational scattering spectrum.

Abstract

We examine the high energy (Regge) limit of gravitational scattering using a Wilson line approach previously used in the context of non-Abelian gauge theories. Our aim is to clarify the nature of the Reggeization of the graviton and the interplay between this Reggeization and the so-called eikonal phase which determines the spectrum of gravitational bound states. Furthermore, we discuss finite corrections to this picture. Our results are of relevance to various supergravity theories, and also help to clarify the relationship between gauge and gravity theories.