Holographic QCD: Past, Present, and Future

TL;DR

This paper reviews the development and achievements of holographic QCD, a theoretical approach based on the AdS/CFT correspondence, highlighting models and applications in understanding nonperturbative quantum chromodynamics.

Contribution

It provides an overview of holographic QCD, connecting string theory to specific models and applications, and discusses its progress and future prospects.

Findings

Summary of top-down holographic QCD models

Selected physical applications of these models

Insights into nonperturbative QCD phenomena

Abstract

At the dawn of a new theoretical tool based on the AdS/CFT correspondence for nonperturbative aspects of quantum chromodynamics, we give an interim review on the new tool, holographic QCD, with some of its accomplishment. We try to give an A-to-Z picture of the holographic QCD, from string theory to a few selected top-down holographic QCD models with one or two physical applications in each model. We may not attempt to collect diverse results from various holographic QCD model studies.