The confinement problem Available to Purchase

Progress in understanding the structure of quark‐gluon composites requires accurate non‐perturbative calculations of the quantum fields. A new Hamiltonian method for numerical calculation, which uses a normal‐mode expansion in a spatial domain which is essentially of hadron size, is described here. We consider QCD in the Coulomb gauge, and explore the confinement of color via Gribov’s scenario, which involves properties of the Faddeev‐Popov determinant and of the chromoelectrostatic potential. Simplified calculations support the existence of a mass gap, and provide some suggestions about the properties of confined gluons which may be useful in phenomenological models.