  We describe phase transitions in the heavy quark potential in planar gauge
theories having wrapped D5-brane string duals. A new phase transition,
previously unnoticed in these models, is driven by the source of a large
dimension operator. Another transition, which has already been described in a
previous paper, is driven by the presence of light dynamical flavors. Both
transitions connect a Coulomb-like phase to a confining linear phase.

High Energy Physics - Theory