Towards complete string effective actions beyond leading order

TL;DR

This paper reviews the current understanding of higher-derivative terms in string effective actions, discussing methods to derive them and their applications beyond leading order.

Contribution

It provides a comprehensive overview of approaches to obtain higher-derivative corrections in string effective actions beyond the leading order.

Findings

Summarizes methods for deriving higher-derivative terms

Highlights applications of these terms in string theory

Discusses challenges in computing beyond leading order

Abstract

We review the current knowledge of higher-derivative terms in string effective actions, the various approaches that have been used to obtain them and their applications.