Quark confinement and the bosonic string

TL;DR

This paper uses a novel simulation algorithm to confirm the bosonic string theory prediction of a specific correction to the static quark potential at large distances, showing a transition from perturbative to string behavior.

Contribution

It introduces a new simulation method for SU(3) lattice gauge theory that achieves unprecedented precision in confirming string theory predictions.

Findings

Confirmed the $b3/r$ correction to the quark potential

Observed transition from perturbative to string behavior at small distances

Validated bosonic string theory predictions in 3 and 4 dimensions

Abstract

Using a new type of simulation algorithm for the standard SU(3) lattice gauge theory that yields results with unprecedented precision, we confirm the presence of a $\gamma/r$ correction to the static quark potential at large distances $r$, with a coefficient $\gamma$ as predicted by the bosonic string theory. In both three and four dimensions, the transition from perturbative to string behaviour is evident from the data and takes place at surprisingly small distances.