Semiclassical strings on confining backgrounds

TL;DR

This paper studies semiclassical string configurations in confining backgrounds, analyzing their relation to gauge theory states like Wilson loops and glueballs, and examines quantum corrections to classical energies.

Contribution

It provides new insights into semiclassical strings in confining backgrounds and their quantum corrections, linking string states to gauge theory observables.

Findings

1-loop corrections rescale parameters depending on coupling

String states correspond to Wilson loops, glueballs, KK-hadrons

Quantum corrections are significant and non-subleading

Abstract

This paper discusses some results on semiclassical string configurations lying in the IR sector of supergravity backgrounds dual to confining gauge theories. On the gauge theory side, the string states we analyse correspond to Wilson loops, glueballs and KK-hadrons. The 1-loop correction to the classical energy is never subleading, but can be viewed as a coupling dependent rescaling of the dimensionful parameters of the theory.