Strong interactions and gauge/string duality

TL;DR

This paper reviews models of strong interactions using gauge/string duality, demonstrating how AdS space can predict hadronic masses, quark potentials, and phase transitions between confinement and deconfinement.

Contribution

It introduces phenomenological models based on gauge/string duality that accurately estimate hadronic spectra and describe phase transitions in strong interactions.

Findings

Hadronic masses estimated with infrared cut-off in AdS space

Reproduction of Cornell potential using static strings in AdS geometry

Identification of a deconfinement transition via AdS Schwarzschild space

Abstract

We discuss some recent phenomenological models for strong interactions based on the idea of gauge/string duality. A very good estimate for hadronic masses can be found by placing an infrared cut off in AdS space. Considering static strings in this geometry one can also reproduce the phenomenological Cornell potential for a quark anti-quark potential at zero temperature. Placing static strings in an AdS Schwarzschild space with an infrared cut off one finds a transition from a confining to a deconfining phase at some critical horizon radius (associated with temperature).