2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191373The small-scale structure of a string connecting a pair of static sources is explored for the weakly-coupled anisotropic SU(2) Yang-Mills theory in (2+1) dimensions. A crucial ingredient in the formulation of the string Hamiltonian is the phenomenon of color smearing of the string constituents. The quark-anti-quark potential is determined. We close with some discussion of the standard, fully Lorentz-invariant Yang-Mills theory.Some minor errors corrected, references slightly reorganized, version to appear in Phys. Rev. DHigh Energy Physics - TheoryStrongly Correlated ElectronsHigh Energy Physics - LatticeMathematical Physicstext