  A quick and simplified review of the 5D quantum field theory is presented.
The role of topological mapping, which must preserve gauge invariance, is done
in two ways, leading to the realization of the gauge transformation in the 5D
space-time becoming two separate gauge constraints, one for the multi-quark
state quark constituents, while the other is the quantum confinement imposed on
the gluon potentials, formed from products of vector potentials generated by
products of the fractional charged quark currents. The procedure presented
clearly shows multi-quark states can be designed and that they can be verified
by experiments, such as the penta-quark state reported. Based on these gauge
constraints we propose the existence of 4, 5 and 6 quark states.
