Broadening of the QCD(3) flux tube from the AdS/CFT correspondence

We use the finite temperature AdS/CFT approach to demonstrate logarithmic b roadening of the confining QCD(3) flux tube as a function of quark separati on. This behavior indicates that, unlike lattice QCD, there is no roughenin g transition in the AdS/CFT formulation, which raises the interesting possi bility of extrapolating strong coupling results to weak couplings by the us e of resummation techniques. In the zero-temperature non-confining limit, w e find that this logarithmic broadening of the field strength distribution is absent. Our results are obtained numerically at strong couplings, in the supergravity approximation.