QCD, with Strings Attached

TL;DR

This paper reviews the gauge-gravity correspondence as a tool for studying strongly-coupled quantum chromodynamics (QCD), highlighting its formulation, applications, and efforts to model QCD phenomena without requiring string theory expertise.

Contribution

It provides a self-contained overview of the gauge-gravity duality and its applications to QCD, emphasizing non-string-theoretic approaches to emulate strong-coupling physics.

Findings

Summarizes the formulation of gauge-gravity duality

Highlights applications to QCD-like theories

Discusses modeling strong-coupling phenomena

Abstract

In the nearly twenty years that have elapsed since its discovery, the gauge-gravity correspondence has become established as an efficient tool to explore the physics of a large class of strongly-coupled field theories. A brief overview is given here of its formulation and a few of its applications, emphasizing attempts to emulate aspects of the strong-coupling regime of quantum chromodynamics (QCD). To the extent possible, the presentation is self-contained, and in particular, it does not presuppose knowledge of string theory.