  We compute the quark-antiquark flux tube for pure gauge SU(3) in space-time 3
+ 1 dimensions. To increase the signal over noise ratio, we apply the improved
multihit and extended smearing techniques. We fit the field densities with an
appropriate ansatz and we observe both the screening of the color fields and
the quantum widening of the flux tube in the mediator plane and in the charge
planes.
