Abstract
We compare the physical potential of an external quark-antiquark pair in the representation of , to the color-Coulomb potential which is the instantaneous part of the 44-component: of the gluon propagator in Coulomb-gauge . We show that if is confining, , as is believed to hold in the absence of dynamical quarks, then the inequality holds asymptotically at large , where is the Casimir in the representation . This implies that is also confining.
- Received 11 September 2002
DOI:https://doi.org/10.1103/PhysRevLett.90.102001
©2003 American Physical Society